Diff of the two buildlogs:

--
--- b1/build.log	2025-03-08 00:07:25.330659692 +0000
+++ b2/build.log	2025-03-08 00:12:04.134123611 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Thu Apr  9 18:28:03 -12 2026
-I: pbuilder-time-stamp: 1775802483
+I: Current time: Sat Mar  8 14:07:27 +14 2025
+I: pbuilder-time-stamp: 1741392447
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/unstable-reproducible-base.tgz]
 I: copying local configuration
@@ -24,52 +24,84 @@
 dpkg-source: info: applying 0001-Start-showing-inlined-functions-in-stack-trace.patch
 I: Not using root during the build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/2499181/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/291514/tmp/hooks/D01_modify_environment starting
+debug: Running on ionos1-amd64.
+I: Changing host+domainname to test build reproducibility
+I: Adding a custom variable just for the fun of it...
+I: Changing /bin/sh to bash
+'/bin/sh' -> '/bin/bash'
+lrwxrwxrwx 1 root root 9 Mar  8 00:07 /bin/sh -> /bin/bash
+I: Setting pbuilder2's login shell to /bin/bash
+I: Setting pbuilder2's GECOS to second user,second room,second work-phone,second home-phone,second other
+I: user script /srv/workspace/pbuilder/291514/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/291514/tmp/hooks/D02_print_environment starting
 I: set
-  BUILDDIR='/build/reproducible-path'
-  BUILDUSERGECOS='first user,first room,first work-phone,first home-phone,first other'
-  BUILDUSERNAME='pbuilder1'
-  BUILD_ARCH='amd64'
-  DEBIAN_FRONTEND='noninteractive'
-  DEB_BUILD_OPTIONS='buildinfo=+all reproducible=+all parallel=42 '
-  DISTRIBUTION='unstable'
-  HOME='/root'
-  HOST_ARCH='amd64'
+  BASH=/bin/sh
+  BASHOPTS=checkwinsize:cmdhist:complete_fullquote:extquote:force_fignore:globasciiranges:globskipdots:hostcomplete:interactive_comments:patsub_replacement:progcomp:promptvars:sourcepath
+  BASH_ALIASES=()
+  BASH_ARGC=()
+  BASH_ARGV=()
+  BASH_CMDS=()
+  BASH_LINENO=([0]="12" [1]="0")
+  BASH_LOADABLES_PATH=/usr/local/lib/bash:/usr/lib/bash:/opt/local/lib/bash:/usr/pkg/lib/bash:/opt/pkg/lib/bash:.
+  BASH_SOURCE=([0]="/tmp/hooks/D02_print_environment" [1]="/tmp/hooks/D02_print_environment")
+  BASH_VERSINFO=([0]="5" [1]="2" [2]="37" [3]="1" [4]="release" [5]="x86_64-pc-linux-gnu")
+  BASH_VERSION='5.2.37(1)-release'
+  BUILDDIR=/build/reproducible-path
+  BUILDUSERGECOS='second user,second room,second work-phone,second home-phone,second other'
+  BUILDUSERNAME=pbuilder2
+  BUILD_ARCH=amd64
+  DEBIAN_FRONTEND=noninteractive
+  DEB_BUILD_OPTIONS='buildinfo=+all reproducible=+all parallel=20 '
+  DIRSTACK=()
+  DISTRIBUTION=unstable
+  EUID=0
+  FUNCNAME=([0]="Echo" [1]="main")
+  GROUPS=()
+  HOME=/root
+  HOSTNAME=i-capture-the-hostname
+  HOSTTYPE=x86_64
+  HOST_ARCH=amd64
   IFS=' 	
   '
-  INVOCATION_ID='59c97206ed6b4b679ca0a05b96fbd097'
-  LANG='C'
-  LANGUAGE='en_US:en'
-  LC_ALL='C'
-  MAIL='/var/mail/root'
-  OPTIND='1'
-  PATH='/usr/sbin:/usr/bin:/sbin:/bin:/usr/games'
-  PBCURRENTCOMMANDLINEOPERATION='build'
-  PBUILDER_OPERATION='build'
-  PBUILDER_PKGDATADIR='/usr/share/pbuilder'
-  PBUILDER_PKGLIBDIR='/usr/lib/pbuilder'
-  PBUILDER_SYSCONFDIR='/etc'
-  PPID='2499181'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=409a9e8fbffe42798a22c1565eebb0ea
+  LANG=C
+  LANGUAGE=et_EE:et
+  LC_ALL=C
+  MACHTYPE=x86_64-pc-linux-gnu
+  MAIL=/var/mail/root
+  OPTERR=1
+  OPTIND=1
+  OSTYPE=linux-gnu
+  PATH=/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/i/capture/the/path
+  PBCURRENTCOMMANDLINEOPERATION=build
+  PBUILDER_OPERATION=build
+  PBUILDER_PKGDATADIR=/usr/share/pbuilder
+  PBUILDER_PKGLIBDIR=/usr/lib/pbuilder
+  PBUILDER_SYSCONFDIR=/etc
+  PIPESTATUS=([0]="0")
+  POSIXLY_CORRECT=y
+  PPID=291514
   PS4='+ '
-  PWD='/'
-  SHELL='/bin/bash'
-  SHLVL='2'
-  SUDO_COMMAND='/usr/bin/timeout -k 18.1h 18h /usr/bin/ionice -c 3 /usr/bin/nice /usr/sbin/pbuilder --build --configfile /srv/reproducible-results/rbuild-debian/r-b-build.nx5vKL4C/pbuilderrc_VurA --distribution unstable --hookdir /etc/pbuilder/first-build-hooks --debbuildopts -b --basetgz /var/cache/pbuilder/unstable-reproducible-base.tgz --buildresult /srv/reproducible-results/rbuild-debian/r-b-build.nx5vKL4C/b1 --logfile b1/build.log golang-github-bugsnag-bugsnag-go_2.5.1-1.dsc'
-  SUDO_GID='111'
-  SUDO_UID='106'
-  SUDO_USER='jenkins'
-  TERM='unknown'
-  TZ='/usr/share/zoneinfo/Etc/GMT+12'
-  USER='root'
-  _='/usr/bin/systemd-run'
-  http_proxy='http://213.165.73.152:3128'
+  PWD=/
+  SHELL=/bin/bash
+  SHELLOPTS=braceexpand:errexit:hashall:interactive-comments:posix
+  SHLVL=3
+  SUDO_COMMAND='/usr/bin/timeout -k 24.1h 24h /usr/bin/ionice -c 3 /usr/bin/nice -n 11 /usr/bin/unshare --uts -- /usr/sbin/pbuilder --build --configfile /srv/reproducible-results/rbuild-debian/r-b-build.nx5vKL4C/pbuilderrc_l5JA --distribution unstable --hookdir /etc/pbuilder/rebuild-hooks --debbuildopts -b --basetgz /var/cache/pbuilder/unstable-reproducible-base.tgz --buildresult /srv/reproducible-results/rbuild-debian/r-b-build.nx5vKL4C/b2 --logfile b2/build.log golang-github-bugsnag-bugsnag-go_2.5.1-1.dsc'
+  SUDO_GID=110
+  SUDO_UID=105
+  SUDO_USER=jenkins
+  TERM=unknown
+  TZ=/usr/share/zoneinfo/Etc/GMT-14
+  UID=0
+  USER=root
+  _='I: set'
+  http_proxy=http://46.16.76.132:3128
 I: uname -a
-  Linux ionos15-amd64 6.12.12+bpo-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.12.12-1~bpo12+1 (2025-02-23) x86_64 GNU/Linux
+  Linux i-capture-the-hostname 6.1.0-31-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.128-1 (2025-02-07) x86_64 GNU/Linux
 I: ls -l /bin
-  lrwxrwxrwx 1 root root 7 Mar  4  2025 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/2499181/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 Mar  4 11:20 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/291514/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -174,7 +206,7 @@
 Get: 53 http://deb.debian.org/debian unstable/main amd64 golang-github-google-uuid-dev all 1.6.0-1 [20.6 kB]
 Get: 54 http://deb.debian.org/debian unstable/main amd64 golang-github-kardianos-osext-dev all 0.0~git20190222.2bc1f35-3 [7380 B]
 Get: 55 http://deb.debian.org/debian unstable/main amd64 golang-github-pkg-errors-dev all 0.9.1-3 [12.9 kB]
-Fetched 79.5 MB in 10s (7822 kB/s)
+Fetched 79.5 MB in 6s (13.0 MB/s)
 Preconfiguring packages ...
 Selecting previously unselected package sensible-utils.
 (Reading database ... 
(Reading database ... 5%
(Reading database ... 10%
(Reading database ... 15%
(Reading database ... 20%
(Reading database ... 25%
(Reading database ... 30%
(Reading database ... 35%
(Reading database ... 40%
(Reading database ... 45%
(Reading database ... 50%
(Reading database ... 55%
(Reading database ... 60%
(Reading database ... 65%
(Reading database ... 70%
(Reading database ... 75%
(Reading database ... 80%
(Reading database ... 85%
(Reading database ... 90%
(Reading database ... 95%
(Reading database ... 100%
(Reading database ... 19783 files and directories currently installed.)
@@ -409,7 +441,11 @@
 Building tag database...
  -> Finished parsing the build-deps
 I: Building the package
-I: Running cd /build/reproducible-path/golang-github-bugsnag-bugsnag-go-2.5.1/ && env PATH="/usr/sbin:/usr/bin:/sbin:/bin:/usr/games" HOME="/nonexistent/first-build" dpkg-buildpackage -us -uc -b && env PATH="/usr/sbin:/usr/bin:/sbin:/bin:/usr/games" HOME="/nonexistent/first-build" dpkg-genchanges -S  > ../golang-github-bugsnag-bugsnag-go_2.5.1-1_source.changes
+I: user script /srv/workspace/pbuilder/291514/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for unstable
+I: user script /srv/workspace/pbuilder/291514/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/golang-github-bugsnag-bugsnag-go-2.5.1/ && env PATH="/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/i/capture/the/path" HOME="/nonexistent/second-build" dpkg-buildpackage -us -uc -b && env PATH="/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/i/capture/the/path" HOME="/nonexistent/second-build" dpkg-genchanges -S  > ../golang-github-bugsnag-bugsnag-go_2.5.1-1_source.changes
 dpkg-buildpackage: info: source package golang-github-bugsnag-bugsnag-go
 dpkg-buildpackage: info: source version 2.5.1-1
 dpkg-buildpackage: info: source distribution unstable
@@ -427,105 +463,105 @@
    dh_autoreconf -O--builddirectory=_build -O--buildsystem=golang
    dh_auto_configure -O--builddirectory=_build -O--buildsystem=golang
    dh_auto_build -O--builddirectory=_build -O--buildsystem=golang
-	cd _build && go install -trimpath -v -p 42 github.com/bugsnag/bugsnag-go github.com/bugsnag/bugsnag-go/device github.com/bugsnag/bugsnag-go/errors github.com/bugsnag/bugsnag-go/headers github.com/bugsnag/bugsnag-go/sessions github.com/bugsnag/bugsnag-go/testutil github.com/bugsnag/bugsnag-go/v2 github.com/bugsnag/bugsnag-go/v2/device github.com/bugsnag/bugsnag-go/v2/errors github.com/bugsnag/bugsnag-go/v2/headers github.com/bugsnag/bugsnag-go/v2/sessions github.com/bugsnag/bugsnag-go/v2/testutil
-internal/byteorder
-internal/unsafeheader
+	cd _build && go install -trimpath -v -p 20 github.com/bugsnag/bugsnag-go github.com/bugsnag/bugsnag-go/device github.com/bugsnag/bugsnag-go/errors github.com/bugsnag/bugsnag-go/headers github.com/bugsnag/bugsnag-go/sessions github.com/bugsnag/bugsnag-go/testutil github.com/bugsnag/bugsnag-go/v2 github.com/bugsnag/bugsnag-go/v2/device github.com/bugsnag/bugsnag-go/v2/errors github.com/bugsnag/bugsnag-go/v2/headers github.com/bugsnag/bugsnag-go/v2/sessions github.com/bugsnag/bugsnag-go/v2/testutil
 internal/godebugs
-container/list
-cmp
-vendor/golang.org/x/crypto/internal/alias
-log/internal
-internal/nettrace
-unicode/utf16
-vendor/golang.org/x/crypto/cryptobyte/asn1
-crypto/internal/fips140/alias
-internal/goos
-math/bits
-encoding
-internal/goarch
 internal/profilerecord
 internal/coverage/rtcov
-sync/atomic
-unicode/utf8
+internal/goexperiment
+crypto/internal/fips140/alias
 internal/asan
-internal/runtime/syscall
-internal/itoa
-internal/cpu
+internal/unsafeheader
+internal/goarch
+internal/byteorder
 internal/msan
+unicode/utf8
 internal/runtime/atomic
+internal/cpu
+sync/atomic
 crypto/internal/boring/sig
-internal/goexperiment
+encoding
+math/bits
+cmp
 unicode
+internal/itoa
+internal/runtime/syscall
+internal/goos
+unicode/utf16
+internal/nettrace
+log/internal
 crypto/internal/fips140/subtle
+container/list
+vendor/golang.org/x/crypto/cryptobyte/asn1
+vendor/golang.org/x/crypto/internal/alias
 internal/runtime/math
-internal/runtime/sys
 internal/abi
-crypto/internal/fips140deps/byteorder
 internal/chacha8rand
-crypto/internal/fips140deps/cpu
+internal/runtime/sys
+crypto/internal/fips140deps/byteorder
+internal/runtime/exithook
 internal/bytealg
+crypto/internal/fips140deps/cpu
 math
-internal/runtime/exithook
-internal/stringslite
 internal/race
-internal/sync
 internal/runtime/maps
+internal/sync
+internal/stringslite
 runtime
+internal/reflectlite
 iter
+sync
 crypto/subtle
 weak
-internal/reflectlite
-sync
-maps
 slices
-errors
+maps
 sort
-internal/bisect
-internal/singleflight
-internal/testlog
-unique
-runtime/cgo
+errors
 internal/oserror
-io
+strconv
 path
 math/rand/v2
 vendor/golang.org/x/net/dns/dnsmessage
-strconv
-internal/godebug
+io
+unique
+internal/bisect
+internal/testlog
+internal/singleflight
 syscall
+runtime/cgo
+reflect
 hash
 bytes
-strings
+internal/godebug
 crypto/internal/randutil
-hash/crc32
+strings
 crypto
 net/netip
-reflect
+hash/crc32
 crypto/internal/fips140deps/godebug
 math/rand
 vendor/golang.org/x/text/transform
+crypto/internal/fips140
 crypto/internal/impl
-net/http/internal/ascii
 bufio
-crypto/internal/fips140
+net/http/internal/ascii
 net/http/internal/testcert
+time
+internal/syscall/execenv
+internal/syscall/unix
+crypto/internal/fips140/sha3
 crypto/tls/internal/fips140tls
 crypto/internal/fips140/sha256
 crypto/internal/fips140/sha512
-crypto/internal/fips140/sha3
 crypto/internal/fips140/hmac
 crypto/sha3
 crypto/internal/fips140/check
 crypto/internal/fips140hash
-internal/syscall/execenv
-internal/syscall/unix
-time
+crypto/internal/fips140/aes
+crypto/internal/fips140/edwards25519/field
 crypto/internal/fips140/hkdf
 crypto/internal/fips140/tls12
-crypto/internal/fips140/edwards25519/field
-crypto/internal/fips140/bigmod
-crypto/internal/fips140/aes
 crypto/internal/fips140/nistec/fiat
+crypto/internal/fips140/bigmod
 crypto/internal/fips140/tls13
 crypto/internal/fips140/edwards25519
 context
@@ -533,140 +569,140 @@
 github.com/bugsnag/bugsnag-go/headers
 github.com/bugsnag/bugsnag-go/v2/headers
 internal/poll
-crypto/internal/fips140/nistec
-internal/fmtsort
-encoding/binary
 internal/filepathlite
 os
-encoding/base64
-vendor/golang.org/x/crypto/internal/poly1305
-encoding/pem
+crypto/internal/fips140/nistec
+encoding/binary
+internal/fmtsort
+crypto/internal/sysrand
 github.com/bugsnag/bugsnag-go/device
 io/ioutil
-internal/sysinfo
-github.com/bugsnag/bugsnag-go/v2/device
-crypto/internal/sysrand
 path/filepath
 os/signal
-fmt
 vendor/golang.org/x/sys/cpu
+internal/sysinfo
+github.com/bugsnag/bugsnag-go/v2/device
 net
+fmt
 crypto/internal/entropy
 crypto/internal/fips140/drbg
+crypto/internal/fips140/aes/gcm
 crypto/internal/fips140only
+crypto/internal/fips140/ecdsa
 crypto/internal/fips140/ecdh
 crypto/internal/fips140/ed25519
 crypto/internal/fips140/mlkem
-crypto/internal/fips140/ecdsa
 crypto/internal/fips140/rsa
-crypto/internal/fips140/aes/gcm
 os/exec
-crypto/rc4
 crypto/md5
+crypto/rc4
+encoding/base64
+vendor/golang.org/x/crypto/internal/poly1305
+encoding/pem
+crypto/cipher
 github.com/bugsnag/panicwrap
-database/sql/driver
-encoding/hex
-log
+crypto/internal/boring
+crypto/des
+vendor/golang.org/x/crypto/chacha20
+crypto/sha512
+crypto/aes
+crypto/hmac
+github.com/pkg/errors
+crypto/sha256
 net/url
+mime
+log
+crypto/ecdh
+vendor/golang.org/x/net/http2/hpack
+compress/flate
+vendor/golang.org/x/text/unicode/norm
+crypto/sha1
+math/big
+database/sql/driver
 encoding/json
+encoding/hex
+mime/quotedprintable
+vendor/golang.org/x/crypto/chacha20poly1305
 net/http/internal
-compress/flate
 flag
-mime/quotedprintable
-mime
-vendor/golang.org/x/text/unicode/norm
-github.com/pkg/errors
-vendor/golang.org/x/net/http2/hpack
-runtime/trace
 runtime/debug
-math/big
-github.com/bugsnag/bugsnag-go/v2/errors
+runtime/trace
 github.com/bugsnag/bugsnag-go/errors
+github.com/bugsnag/bugsnag-go/v2/errors
 vendor/golang.org/x/text/unicode/bidi
-testing
-crypto/cipher
 compress/gzip
-vendor/golang.org/x/crypto/chacha20
-crypto/internal/boring
-crypto/des
+testing
 vendor/golang.org/x/text/secure/bidirule
-crypto/sha512
-crypto/aes
-crypto/ecdh
-crypto/sha1
-crypto/hmac
-crypto/sha256
 vendor/golang.org/x/net/idna
-vendor/golang.org/x/crypto/chacha20poly1305
 github.com/bitly/go-simplejson
 crypto/rand
 crypto/internal/boring/bbig
-crypto/dsa
 crypto/elliptic
+crypto/dsa
 encoding/asn1
 crypto/ed25519
 crypto/internal/hpke
 crypto/rsa
-crypto/x509/pkix
 vendor/golang.org/x/crypto/cryptobyte
+crypto/x509/pkix
 crypto/ecdsa
 net/textproto
-vendor/golang.org/x/net/http/httpproxy
 github.com/google/uuid
 crypto/x509
+vendor/golang.org/x/net/http/httpproxy
 vendor/golang.org/x/net/http/httpguts
 mime/multipart
 crypto/tls
 net/http/httptrace
 net/http
-net/http/httptest
 github.com/bugsnag/bugsnag-go/sessions
+net/http/httptest
 github.com/bugsnag/bugsnag-go/v2/sessions
 github.com/bugsnag/bugsnag-go/v2
 github.com/bugsnag/bugsnag-go
 github.com/bugsnag/bugsnag-go/testutil
 github.com/bugsnag/bugsnag-go/v2/testutil
    dh_auto_test -O--builddirectory=_build -O--buildsystem=golang
-	cd _build && go test -vet=off -v -p 42 github.com/bugsnag/bugsnag-go github.com/bugsnag/bugsnag-go/device github.com/bugsnag/bugsnag-go/errors github.com/bugsnag/bugsnag-go/headers github.com/bugsnag/bugsnag-go/sessions github.com/bugsnag/bugsnag-go/testutil github.com/bugsnag/bugsnag-go/v2 github.com/bugsnag/bugsnag-go/v2/device github.com/bugsnag/bugsnag-go/v2/errors github.com/bugsnag/bugsnag-go/v2/headers github.com/bugsnag/bugsnag-go/v2/sessions github.com/bugsnag/bugsnag-go/v2/testutil
+	cd _build && go test -vet=off -v -p 20 github.com/bugsnag/bugsnag-go github.com/bugsnag/bugsnag-go/device github.com/bugsnag/bugsnag-go/errors github.com/bugsnag/bugsnag-go/headers github.com/bugsnag/bugsnag-go/sessions github.com/bugsnag/bugsnag-go/testutil github.com/bugsnag/bugsnag-go/v2 github.com/bugsnag/bugsnag-go/v2/device github.com/bugsnag/bugsnag-go/v2/errors github.com/bugsnag/bugsnag-go/v2/headers github.com/bugsnag/bugsnag-go/v2/sessions github.com/bugsnag/bugsnag-go/v2/testutil
 === RUN   TestConfigure
---- PASS: TestConfigure (0.00s)
+--- PASS: TestConfigure (0.01s)
 === RUN   TestNotify
---- PASS: TestNotify (0.00s)
+=== RUN   TestConfigure
+--- PASS: TestNotify (0.02s)
 === RUN   TestNotifySyncThenAsync
 --- PASS: TestNotifySyncThenAsync (0.00s)
 === RUN   TestHandlerFunc
 === RUN   TestHandlerFunc/unhandled
-=== RUN   TestConfigure
-2026/04/10 06:30:13 http: panic serving 127.0.0.1:38466: send on closed channel
-goroutine 67 [running]:
+=== RUN   TestHandlerFunc/handled
+--- PASS: TestHandlerFunc (0.01s)
+    --- PASS: TestHandlerFunc/unhandled (0.01s)
+    --- PASS: TestHandlerFunc/handled (0.00s)
+=== RUN   TestHandler
+2025/03/08 00:11:24 http: panic serving 127.0.0.1:54678: send on closed channel
+goroutine 45 [running]:
 net/http.(*conn).serve.func1()
 	/usr/lib/go-1.24/src/net/http/server.go:1947 +0xbe
 panic({0x7acd00?, 0x8ac2f0?})
 	/usr/lib/go-1.24/src/runtime/panic.go:792 +0x132
-github.com/bugsnag/bugsnag-go.(*Notifier).AutoNotify(0xc0000ca7c0, {0xc000209910, 0x1, 0x1})
+github.com/bugsnag/bugsnag-go.(*Notifier).AutoNotify(0xc0002b2140, {0xc0002df910, 0x1, 0x1})
 	/build/reproducible-path/golang-github-bugsnag-bugsnag-go-2.5.1/_build/src/github.com/bugsnag/bugsnag-go/notifier.go:102 +0x537
 panic({0x7acd00?, 0x8ac2f0?})
 	/usr/lib/go-1.24/src/runtime/panic.go:792 +0x132
-github.com/bugsnag/bugsnag-go.crashyHandler({0x8b1ea8?, 0xc0003163c0?}, 0x7947e0?)
+github.com/bugsnag/bugsnag-go.crashyHandler({0x8b1ea8?, 0xc000200540?}, 0x7947e0?)
 	/build/reproducible-path/golang-github-bugsnag-bugsnag-go-2.5.1/_build/src/github.com/bugsnag/bugsnag-go/bugsnag_test.go:24 +0x37
-github.com/bugsnag/bugsnag-go.HandlerFunc.func1({0x8b1b88, 0xc0003380e0}, 0xc000354000)
+github.com/bugsnag/bugsnag-go.HandlerFunc.func1({0x8b1b88, 0xc0001760e0}, 0xc0002d4140)
 	/build/reproducible-path/golang-github-bugsnag-bugsnag-go-2.5.1/_build/src/github.com/bugsnag/bugsnag-go/bugsnag.go:202 +0x1f4
-net/http.HandlerFunc.ServeHTTP(0x473c59?, {0x8b1b88?, 0xc0003380e0?}, 0xc000209b70?)
+net/http.HandlerFunc.ServeHTTP(0x473c59?, {0x8b1b88?, 0xc0001760e0?}, 0xc0002dfb70?)
 	/usr/lib/go-1.24/src/net/http/server.go:2294 +0x29
-net/http.serverHandler.ServeHTTP({0xc0003162a0?}, {0x8b1b88?, 0xc0003380e0?}, 0x1?)
+net/http.serverHandler.ServeHTTP({0xc000284a20?}, {0x8b1b88?, 0xc0001760e0?}, 0x1?)
 	/usr/lib/go-1.24/src/net/http/server.go:3301 +0x8e
-net/http.(*conn).serve(0xc000312120, {0x8b1ea8, 0xc000316180})
+net/http.(*conn).serve(0xc0002d2240, {0x8b1ea8, 0xc000284900})
 	/usr/lib/go-1.24/src/net/http/server.go:2102 +0x625
-created by net/http.(*Server).Serve in goroutine 87
+created by net/http.(*Server).Serve in goroutine 42
 	/usr/lib/go-1.24/src/net/http/server.go:3454 +0x485
-=== RUN   TestHandlerFunc/handled
---- PASS: TestHandlerFunc (0.00s)
-    --- PASS: TestHandlerFunc/unhandled (0.00s)
-    --- PASS: TestHandlerFunc/handled (0.00s)
-=== RUN   TestHandler
---- PASS: TestHandler (0.00s)
+--- PASS: TestHandler (0.01s)
 === RUN   TestAutoNotify
---- PASS: TestAutoNotify (0.00s)
+--- PASS: TestAutoNotify (0.01s)
 === RUN   TestRecover
 --- PASS: TestRecover (0.00s)
 === RUN   TestRecoverCustomHandledState
@@ -703,7 +739,7 @@
 === RUN   TestIsAutoCaptureSessions
 --- PASS: TestIsAutoCaptureSessions (0.00s)
 === RUN   TestPopulateEvent
---- PASS: TestPopulateEvent (0.00s)
+--- PASS: TestPopulateEvent (0.01s)
 === RUN   TestMetaDataAdd
 --- PASS: TestMetaDataAdd (0.00s)
 === RUN   TestMetaDataUpdate
@@ -719,9 +755,9 @@
 === RUN   TestBeforeNotifyPanic
 --- PASS: TestBeforeNotifyPanic (0.00s)
 === RUN   TestPanicHandlerHandledPanic
---- PASS: TestPanicHandlerHandledPanic (0.01s)
+--- PASS: TestPanicHandlerHandledPanic (0.08s)
 === RUN   TestPanicHandlerUnhandledPanic
---- PASS: TestPanicHandlerUnhandledPanic (0.01s)
+--- PASS: TestPanicHandlerUnhandledPanic (0.10s)
 === RUN   TestMarshalEmptyPayload
 --- PASS: TestMarshalEmptyPayload (0.00s)
 === RUN   TestMarshalLargePayload
@@ -742,12 +778,12 @@
 === RUN   TestStackframesAreSkippedCorrectly/bugsnag.AutoNotify
 === RUN   TestStackframesAreSkippedCorrectly/notifier.Recover
 === RUN   TestStackframesAreSkippedCorrectly/bugsnag.Recover
---- PASS: TestStackframesAreSkippedCorrectly (0.00s)
+--- PASS: TestStackframesAreSkippedCorrectly (0.06s)
     --- PASS: TestStackframesAreSkippedCorrectly/notifier.Notify (0.00s)
     --- PASS: TestStackframesAreSkippedCorrectly/bugsnag.Notify (0.00s)
     --- PASS: TestStackframesAreSkippedCorrectly/notifier.NotifySync (0.00s)
-    --- PASS: TestStackframesAreSkippedCorrectly/notifier.AutoNotify (0.00s)
-    --- PASS: TestStackframesAreSkippedCorrectly/bugsnag.AutoNotify (0.00s)
+    --- PASS: TestStackframesAreSkippedCorrectly/notifier.AutoNotify (0.01s)
+    --- PASS: TestStackframesAreSkippedCorrectly/bugsnag.AutoNotify (0.01s)
     --- PASS: TestStackframesAreSkippedCorrectly/notifier.Recover (0.00s)
     --- PASS: TestStackframesAreSkippedCorrectly/bugsnag.Recover (0.00s)
 === RUN   TestModifyingEventsWithCallbacks
@@ -761,48 +797,48 @@
 === RUN   ExampleRecover
 --- PASS: ExampleRecover (0.00s)
 PASS
-2026/04/10 06:30:13 bugsnag/notifier.Notify: panic! unexpected call to os.Exit(0) during test
---- PASS: TestConfigure (0.10s)
+2025/03/08 00:11:24 bugsnag/notifier.Notify: panic! unexpected call to os.Exit(0) during test
+--- PASS: TestConfigure (0.29s)
 === RUN   TestNotify
 --- PASS: TestNotify (0.00s)
 === RUN   TestNotifySyncThenAsync
 --- PASS: TestNotifySyncThenAsync (0.00s)
 === RUN   TestHandlerFunc
 === RUN   TestHandlerFunc/unhandled
-2026/04/10 06:30:13 http: panic serving 127.0.0.1:58922: send on closed channel
-goroutine 35 [running]:
+2025/03/08 00:11:24 http: panic serving 127.0.0.1:50118: send on closed channel
+goroutine 50 [running]:
 net/http.(*conn).serve.func1()
 	/usr/lib/go-1.24/src/net/http/server.go:1947 +0xbe
 panic({0x7acd00?, 0x8ac2f0?})
 	/usr/lib/go-1.24/src/runtime/panic.go:792 +0x132
-github.com/bugsnag/bugsnag-go.(*Notifier).AutoNotify(0xc0000ca7a0, {0xc0002c6910, 0x1, 0x1})
+github.com/bugsnag/bugsnag-go.(*Notifier).AutoNotify(0xc0001b4800, {0xc000093910, 0x1, 0x1})
 	/build/reproducible-path/golang-github-bugsnag-bugsnag-go-2.5.1/_build/src/github.com/bugsnag/bugsnag-go/notifier.go:102 +0x537
 panic({0x7acd00?, 0x8ac2f0?})
 	/usr/lib/go-1.24/src/runtime/panic.go:792 +0x132
-github.com/bugsnag/bugsnag-go.crashyHandler({0x8b1ea8?, 0xc000412630?}, 0x7947e0?)
+github.com/bugsnag/bugsnag-go.crashyHandler({0x8b1ea8?, 0xc000246ea0?}, 0x7947e0?)
 	/build/reproducible-path/golang-github-bugsnag-bugsnag-go-2.5.1/_build/src/github.com/bugsnag/bugsnag-go/bugsnag_test.go:24 +0x37
-github.com/bugsnag/bugsnag-go.HandlerFunc.func1({0x8b1b88, 0xc00043c000}, 0xc0002ce000)
+github.com/bugsnag/bugsnag-go.HandlerFunc.func1({0x8b1b88, 0xc000236380}, 0xc00019ec80)
 	/build/reproducible-path/golang-github-bugsnag-bugsnag-go-2.5.1/_build/src/github.com/bugsnag/bugsnag-go/bugsnag.go:202 +0x1f4
-net/http.HandlerFunc.ServeHTTP(0x473c59?, {0x8b1b88?, 0xc00043c000?}, 0xc0002c6b70?)
+net/http.HandlerFunc.ServeHTTP(0x473c59?, {0x8b1b88?, 0xc000236380?}, 0xc000093b70?)
 	/usr/lib/go-1.24/src/net/http/server.go:2294 +0x29
-net/http.serverHandler.ServeHTTP({0xc0002a6300?}, {0x8b1b88?, 0xc00043c000?}, 0x1?)
+net/http.serverHandler.ServeHTTP({0xc000246cf0?}, {0x8b1b88?, 0xc000236380?}, 0x1?)
 	/usr/lib/go-1.24/src/net/http/server.go:3301 +0x8e
-net/http.(*conn).serve(0xc0002aa1b0, {0x8b1ea8, 0xc0002a61e0})
+net/http.(*conn).serve(0xc0001a85a0, {0x8b1ea8, 0xc000246bd0})
 	/usr/lib/go-1.24/src/net/http/server.go:2102 +0x625
-created by net/http.(*Server).Serve in goroutine 72
+created by net/http.(*Server).Serve in goroutine 31
 	/usr/lib/go-1.24/src/net/http/server.go:3454 +0x485
 === RUN   TestHandlerFunc/handled
---- PASS: TestHandlerFunc (0.00s)
+--- PASS: TestHandlerFunc (0.02s)
     --- PASS: TestHandlerFunc/unhandled (0.00s)
-    --- PASS: TestHandlerFunc/handled (0.00s)
+    --- PASS: TestHandlerFunc/handled (0.02s)
 === RUN   TestHandler
---- PASS: TestHandler (0.00s)
+--- PASS: TestHandler (0.01s)
 === RUN   TestAutoNotify
 --- PASS: TestAutoNotify (0.00s)
 === RUN   TestRecover
 --- PASS: TestRecover (0.00s)
 === RUN   TestRecoverCustomHandledState
---- PASS: TestRecoverCustomHandledState (0.00s)
+--- PASS: TestRecoverCustomHandledState (0.01s)
 === RUN   TestSeverityReasonNotifyCallback
 --- PASS: TestSeverityReasonNotifyCallback (0.00s)
 === RUN   TestNotifyWithoutError
@@ -835,7 +871,7 @@
 === RUN   TestIsAutoCaptureSessions
 --- PASS: TestIsAutoCaptureSessions (0.00s)
 === RUN   TestPopulateEvent
---- PASS: TestPopulateEvent (0.00s)
+--- PASS: TestPopulateEvent (0.01s)
 === RUN   TestMetaDataAdd
 --- PASS: TestMetaDataAdd (0.00s)
 === RUN   TestMetaDataUpdate
@@ -851,33 +887,33 @@
 === RUN   TestBeforeNotifyPanic
 --- PASS: TestBeforeNotifyPanic (0.00s)
 === RUN   TestPanicHandlerHandledPanic
---- FAIL: TestPanicHandlerHandledPanic (0.00s)
+--- FAIL: TestPanicHandlerHandledPanic (0.06s)
 panic: runtime error: invalid memory address or nil pointer dereference [recovered]
 	panic: runtime error: invalid memory address or nil pointer dereference
 [signal SIGSEGV: segmentation violation code=0x1 addr=0x18 pc=0x7045a2]
 
-goroutine 170 [running]:
+goroutine 109 [running]:
 testing.tRunner.func1.2({0x7acca0, 0xae1ef0})
 	/usr/lib/go-1.24/src/testing/testing.go:1734 +0x21c
 testing.tRunner.func1()
 	/usr/lib/go-1.24/src/testing/testing.go:1737 +0x35e
 panic({0x7acca0?, 0xae1ef0?})
 	/usr/lib/go-1.24/src/runtime/panic.go:792 +0x132
-github.com/bugsnag/bugsnag-go.startPanickingProcess(0xc0003b5a40, {0x81ab00, 0x7}, {0xc0001442e8, 0x16})
+github.com/bugsnag/bugsnag-go.startPanickingProcess(0xc00040efc0, {0x81ab00, 0x7}, {0xc00042a150, 0x16})
 	/build/reproducible-path/golang-github-bugsnag-bugsnag-go-2.5.1/_build/src/github.com/bugsnag/bugsnag-go/panicwrap_test.go:111 +0x322
-github.com/bugsnag/bugsnag-go.TestPanicHandlerHandledPanic(0xc0003b5a40)
+github.com/bugsnag/bugsnag-go.TestPanicHandlerHandledPanic(0xc00040efc0)
 	/build/reproducible-path/golang-github-bugsnag-bugsnag-go-2.5.1/_build/src/github.com/bugsnag/bugsnag-go/panicwrap_test.go:22 +0x93
-testing.tRunner(0xc0003b5a40, 0x83e600)
+testing.tRunner(0xc00040efc0, 0x83e600)
 	/usr/lib/go-1.24/src/testing/testing.go:1792 +0xf4
 created by testing.(*T).Run in goroutine 1
 	/usr/lib/go-1.24/src/testing/testing.go:1851 +0x413
-ok  	github.com/bugsnag/bugsnag-go	0.125s
+ok  	github.com/bugsnag/bugsnag-go	0.535s
 === RUN   TestPristineRuntimeVersions
 --- PASS: TestPristineRuntimeVersions (0.00s)
 === RUN   TestModifiedRuntimeVersions
 --- PASS: TestModifiedRuntimeVersions (0.00s)
 PASS
-ok  	github.com/bugsnag/bugsnag-go/device	0.004s
+ok  	github.com/bugsnag/bugsnag-go/device	0.043s
 === RUN   TestParsePanicStack
 --- PASS: TestParsePanicStack (0.00s)
 === RUN   TestParseGeneratedStack
@@ -903,7 +939,7 @@
 === RUN   ExampleNew
 --- PASS: ExampleNew (0.00s)
 PASS
-ok  	github.com/bugsnag/bugsnag-go/errors	0.005s
+ok  	github.com/bugsnag/bugsnag-go/errors	0.041s
 === RUN   TestConstantBugsnagPrefixedHeaders
 === RUN   TestConstantBugsnagPrefixedHeaders/Content-Type
 === RUN   TestConstantBugsnagPrefixedHeaders/Bugsnag-Api-Key
@@ -915,7 +951,7 @@
 === RUN   TestTimeDependentBugsnagPrefixedHeaders
 --- PASS: TestTimeDependentBugsnagPrefixedHeaders (0.00s)
 PASS
-ok  	github.com/bugsnag/bugsnag-go/headers	0.004s
+ok  	github.com/bugsnag/bugsnag-go/headers	0.036s
 === RUN   TestConfigDoesNotChangeGivenBlankValues
 --- PASS: TestConfigDoesNotChangeGivenBlankValues (0.00s)
 === RUN   TestConfigUpdatesGivenNonDefaultValues
@@ -948,26 +984,26 @@
 === RUN   TestSendsCorrectPayloadForBigConfig/Bugsnag-Payload-Version
 === RUN   TestSendsCorrectPayloadForBigConfig/Content-Type
 === RUN   TestSendsCorrectPayloadForBigConfig/Bugsnag-Api-Key
-=== RUN   TestSendsCorrectPayloadForBigConfig/notifier.url
-=== RUN   TestSendsCorrectPayloadForBigConfig/notifier.version
-=== RUN   TestSendsCorrectPayloadForBigConfig/app.type
 === RUN   TestSendsCorrectPayloadForBigConfig/app.releaseStage
 === RUN   TestSendsCorrectPayloadForBigConfig/app.version
 === RUN   TestSendsCorrectPayloadForBigConfig/device.osName
 === RUN   TestSendsCorrectPayloadForBigConfig/device.hostname
 === RUN   TestSendsCorrectPayloadForBigConfig/notifier.name
+=== RUN   TestSendsCorrectPayloadForBigConfig/notifier.url
+=== RUN   TestSendsCorrectPayloadForBigConfig/notifier.version
+=== RUN   TestSendsCorrectPayloadForBigConfig/app.type
 --- PASS: TestSendsCorrectPayloadForBigConfig (0.00s)
     --- PASS: TestSendsCorrectPayloadForBigConfig/Bugsnag-Payload-Version (0.00s)
     --- PASS: TestSendsCorrectPayloadForBigConfig/Content-Type (0.00s)
     --- PASS: TestSendsCorrectPayloadForBigConfig/Bugsnag-Api-Key (0.00s)
-    --- PASS: TestSendsCorrectPayloadForBigConfig/notifier.url (0.00s)
-    --- PASS: TestSendsCorrectPayloadForBigConfig/notifier.version (0.00s)
-    --- PASS: TestSendsCorrectPayloadForBigConfig/app.type (0.00s)
     --- PASS: TestSendsCorrectPayloadForBigConfig/app.releaseStage (0.00s)
     --- PASS: TestSendsCorrectPayloadForBigConfig/app.version (0.00s)
     --- PASS: TestSendsCorrectPayloadForBigConfig/device.osName (0.00s)
     --- PASS: TestSendsCorrectPayloadForBigConfig/device.hostname (0.00s)
     --- PASS: TestSendsCorrectPayloadForBigConfig/notifier.name (0.00s)
+    --- PASS: TestSendsCorrectPayloadForBigConfig/notifier.url (0.00s)
+    --- PASS: TestSendsCorrectPayloadForBigConfig/notifier.version (0.00s)
+    --- PASS: TestSendsCorrectPayloadForBigConfig/app.type (0.00s)
 === RUN   TestNoSessionsSentWhenAPIKeyIsMissing
 --- PASS: TestNoSessionsSentWhenAPIKeyIsMissing (0.00s)
 === RUN   TestNoSessionsOutsideNotifyReleaseStages
@@ -977,7 +1013,7 @@
 === RUN   TestStartSessionModifiesContext
 --- PASS: TestStartSessionModifiesContext (0.00s)
 === RUN   TestShouldOnlyWriteWhenReceivingSessions
---- PASS: TestShouldOnlyWriteWhenReceivingSessions (0.18s)
+--- PASS: TestShouldOnlyWriteWhenReceivingSessions (0.58s)
 === RUN   TestStartSession
 === RUN   TestConfigDoesNotChangeGivenBlankValues
 --- PASS: TestConfigDoesNotChangeGivenBlankValues (0.00s)
@@ -987,50 +1023,50 @@
 === RUN   TestSendsCorrectPayloadForSmallConfig/Bugsnag-Payload-Version
 === RUN   TestSendsCorrectPayloadForSmallConfig/Content-Type
 === RUN   TestSendsCorrectPayloadForSmallConfig/Bugsnag-Api-Key
-=== RUN   TestSendsCorrectPayloadForSmallConfig/device.hostname
-=== RUN   TestSendsCorrectPayloadForSmallConfig/notifier.name
-=== RUN   TestSendsCorrectPayloadForSmallConfig/notifier.url
 === RUN   TestSendsCorrectPayloadForSmallConfig/notifier.version
 === RUN   TestSendsCorrectPayloadForSmallConfig/app.type
 === RUN   TestSendsCorrectPayloadForSmallConfig/app.releaseStage
 === RUN   TestSendsCorrectPayloadForSmallConfig/app.version
 === RUN   TestSendsCorrectPayloadForSmallConfig/device.osName
+=== RUN   TestSendsCorrectPayloadForSmallConfig/device.hostname
+=== RUN   TestSendsCorrectPayloadForSmallConfig/notifier.name
+=== RUN   TestSendsCorrectPayloadForSmallConfig/notifier.url
 --- PASS: TestSendsCorrectPayloadForSmallConfig (0.00s)
     --- PASS: TestSendsCorrectPayloadForSmallConfig/Bugsnag-Payload-Version (0.00s)
     --- PASS: TestSendsCorrectPayloadForSmallConfig/Content-Type (0.00s)
     --- PASS: TestSendsCorrectPayloadForSmallConfig/Bugsnag-Api-Key (0.00s)
-    --- PASS: TestSendsCorrectPayloadForSmallConfig/device.hostname (0.00s)
-    --- PASS: TestSendsCorrectPayloadForSmallConfig/notifier.name (0.00s)
-    --- PASS: TestSendsCorrectPayloadForSmallConfig/notifier.url (0.00s)
     --- PASS: TestSendsCorrectPayloadForSmallConfig/notifier.version (0.00s)
     --- PASS: TestSendsCorrectPayloadForSmallConfig/app.type (0.00s)
     --- PASS: TestSendsCorrectPayloadForSmallConfig/app.releaseStage (0.00s)
     --- PASS: TestSendsCorrectPayloadForSmallConfig/app.version (0.00s)
     --- PASS: TestSendsCorrectPayloadForSmallConfig/device.osName (0.00s)
+    --- PASS: TestSendsCorrectPayloadForSmallConfig/device.hostname (0.00s)
+    --- PASS: TestSendsCorrectPayloadForSmallConfig/notifier.name (0.00s)
+    --- PASS: TestSendsCorrectPayloadForSmallConfig/notifier.url (0.00s)
 === RUN   TestSendsCorrectPayloadForBigConfig
 === RUN   TestSendsCorrectPayloadForBigConfig/Bugsnag-Payload-Version
 === RUN   TestSendsCorrectPayloadForBigConfig/Content-Type
 === RUN   TestSendsCorrectPayloadForBigConfig/Bugsnag-Api-Key
+=== RUN   TestSendsCorrectPayloadForBigConfig/app.releaseStage
+=== RUN   TestSendsCorrectPayloadForBigConfig/app.version
 === RUN   TestSendsCorrectPayloadForBigConfig/device.osName
 === RUN   TestSendsCorrectPayloadForBigConfig/device.hostname
 === RUN   TestSendsCorrectPayloadForBigConfig/notifier.name
 === RUN   TestSendsCorrectPayloadForBigConfig/notifier.url
 === RUN   TestSendsCorrectPayloadForBigConfig/notifier.version
 === RUN   TestSendsCorrectPayloadForBigConfig/app.type
-=== RUN   TestSendsCorrectPayloadForBigConfig/app.releaseStage
-=== RUN   TestSendsCorrectPayloadForBigConfig/app.version
 --- PASS: TestSendsCorrectPayloadForBigConfig (0.00s)
     --- PASS: TestSendsCorrectPayloadForBigConfig/Bugsnag-Payload-Version (0.00s)
     --- PASS: TestSendsCorrectPayloadForBigConfig/Content-Type (0.00s)
     --- PASS: TestSendsCorrectPayloadForBigConfig/Bugsnag-Api-Key (0.00s)
+    --- PASS: TestSendsCorrectPayloadForBigConfig/app.releaseStage (0.00s)
+    --- PASS: TestSendsCorrectPayloadForBigConfig/app.version (0.00s)
     --- PASS: TestSendsCorrectPayloadForBigConfig/device.osName (0.00s)
     --- PASS: TestSendsCorrectPayloadForBigConfig/device.hostname (0.00s)
     --- PASS: TestSendsCorrectPayloadForBigConfig/notifier.name (0.00s)
     --- PASS: TestSendsCorrectPayloadForBigConfig/notifier.url (0.00s)
     --- PASS: TestSendsCorrectPayloadForBigConfig/notifier.version (0.00s)
     --- PASS: TestSendsCorrectPayloadForBigConfig/app.type (0.00s)
-    --- PASS: TestSendsCorrectPayloadForBigConfig/app.releaseStage (0.00s)
-    --- PASS: TestSendsCorrectPayloadForBigConfig/app.version (0.00s)
 === RUN   TestNoSessionsSentWhenAPIKeyIsMissing
 --- PASS: TestNoSessionsSentWhenAPIKeyIsMissing (0.00s)
 === RUN   TestNoSessionsOutsideNotifyReleaseStages
@@ -1040,72 +1076,102 @@
 === RUN   TestStartSessionModifiesContext
 --- PASS: TestStartSessionModifiesContext (0.00s)
 === RUN   TestShouldOnlyWriteWhenReceivingSessions
---- PASS: TestShouldOnlyWriteWhenReceivingSessions (0.18s)
-=== RUN   TestStartSession
 === RUN   TestStartSession/Bugsnag-Payload-Version
 === RUN   TestStartSession/Content-Type
 === RUN   TestStartSession/Bugsnag-Api-Key
---- PASS: TestStartSession (0.86s)
+=== RUN   TestStartSession/Bugsnag-Payload-Version#01
+=== RUN   TestStartSession/Content-Type#01
+=== RUN   TestStartSession/Bugsnag-Api-Key#01
+=== RUN   TestStartSession/Bugsnag-Payload-Version#02
+=== RUN   TestStartSession/Content-Type#02
+=== RUN   TestStartSession/Bugsnag-Api-Key#02
+--- PASS: TestShouldOnlyWriteWhenReceivingSessions (0.65s)
+=== RUN   TestStartSession
+=== RUN   TestStartSession/Bugsnag-Payload-Version#03
+=== RUN   TestStartSession/Content-Type#03
+=== RUN   TestStartSession/Bugsnag-Api-Key#03
+--- PASS: TestStartSession (1.42s)
     --- PASS: TestStartSession/Bugsnag-Payload-Version (0.00s)
     --- PASS: TestStartSession/Content-Type (0.00s)
     --- PASS: TestStartSession/Bugsnag-Api-Key (0.00s)
+    --- PASS: TestStartSession/Bugsnag-Payload-Version#01 (0.00s)
+    --- PASS: TestStartSession/Content-Type#01 (0.00s)
+    --- PASS: TestStartSession/Bugsnag-Api-Key#01 (0.00s)
+    --- PASS: TestStartSession/Bugsnag-Payload-Version#02 (0.00s)
+    --- PASS: TestStartSession/Content-Type#02 (0.00s)
+    --- PASS: TestStartSession/Bugsnag-Api-Key#02 (0.00s)
+    --- PASS: TestStartSession/Bugsnag-Payload-Version#03 (0.00s)
+    --- PASS: TestStartSession/Content-Type#03 (0.00s)
+    --- PASS: TestStartSession/Bugsnag-Api-Key#03 (0.00s)
 PASS
-2026/04/10 06:30:15 bugsnag/notifier.Notify: panic! unexpected call to os.Exit(0) during test
 === RUN   TestStartSession/Bugsnag-Payload-Version
 === RUN   TestStartSession/Content-Type
 === RUN   TestStartSession/Bugsnag-Api-Key
+2025/03/08 00:11:26 bugsnag/notifier.Notify: panic! unexpected call to os.Exit(0) during test
 === RUN   TestStartSession/Bugsnag-Payload-Version#01
 === RUN   TestStartSession/Content-Type#01
 === RUN   TestStartSession/Bugsnag-Api-Key#01
+=== RUN   TestStartSession/Bugsnag-Payload-Version#02
+=== RUN   TestStartSession/Content-Type#02
+=== RUN   TestStartSession/Bugsnag-Api-Key#02
+=== RUN   TestStartSession/Bugsnag-Payload-Version#03
+=== RUN   TestStartSession/Content-Type#03
+=== RUN   TestStartSession/Bugsnag-Api-Key#03
 === NAME  TestStartSession
     integration_test.go:120: Expected 50000 sessions started, but was 50001
---- FAIL: TestStartSession (0.85s)
+--- FAIL: TestStartSession (1.28s)
     --- PASS: TestStartSession/Bugsnag-Payload-Version (0.00s)
     --- PASS: TestStartSession/Content-Type (0.00s)
     --- PASS: TestStartSession/Bugsnag-Api-Key (0.00s)
     --- PASS: TestStartSession/Bugsnag-Payload-Version#01 (0.00s)
     --- PASS: TestStartSession/Content-Type#01 (0.00s)
     --- PASS: TestStartSession/Bugsnag-Api-Key#01 (0.00s)
+    --- PASS: TestStartSession/Bugsnag-Payload-Version#02 (0.00s)
+    --- PASS: TestStartSession/Content-Type#02 (0.00s)
+    --- PASS: TestStartSession/Bugsnag-Api-Key#02 (0.00s)
+    --- PASS: TestStartSession/Bugsnag-Payload-Version#03 (0.00s)
+    --- PASS: TestStartSession/Content-Type#03 (0.00s)
+    --- PASS: TestStartSession/Bugsnag-Api-Key#03 (0.00s)
 FAIL
-ok  	github.com/bugsnag/bugsnag-go/sessions	1.628s
+ok  	github.com/bugsnag/bugsnag-go/sessions	2.992s
 ?   	github.com/bugsnag/bugsnag-go/testutil	[no test files]
 === RUN   TestConfigure
---- PASS: TestConfigure (0.00s)
+--- PASS: TestConfigure (0.02s)
 === RUN   TestNotify
---- PASS: TestNotify (0.00s)
+--- PASS: TestNotify (0.01s)
 === RUN   TestNotifySyncThenAsync
 --- PASS: TestNotifySyncThenAsync (0.00s)
 === RUN   TestHandlerFunc
 === RUN   TestHandlerFunc/unhandled
+=== RUN   TestHandlerFunc/handled
+--- PASS: TestHandlerFunc (0.02s)
+    --- PASS: TestHandlerFunc/unhandled (0.01s)
+    --- PASS: TestHandlerFunc/handled (0.01s)
+=== RUN   TestHandler
 === RUN   TestConfigure
-2026/04/10 06:30:13 http: panic serving 127.0.0.1:50926: send on closed channel
-goroutine 28 [running]:
+2025/03/08 00:11:24 http: panic serving 127.0.0.1:41558: send on closed channel
+goroutine 43 [running]:
 net/http.(*conn).serve.func1()
 	/usr/lib/go-1.24/src/net/http/server.go:1947 +0xbe
 panic({0x7b2400?, 0x8b3350?})
 	/usr/lib/go-1.24/src/runtime/panic.go:792 +0x132
-github.com/bugsnag/bugsnag-go/v2.(*Notifier).AutoNotify(0xc000124120, {0xc000324910, 0x1, 0x1})
+github.com/bugsnag/bugsnag-go/v2.(*Notifier).AutoNotify(0xc0001a17c0, {0xc000262910, 0x1, 0x1})
 	/build/reproducible-path/golang-github-bugsnag-bugsnag-go-2.5.1/_build/src/github.com/bugsnag/bugsnag-go/v2/notifier.go:103 +0x537
 panic({0x7b2400?, 0x8b3350?})
 	/usr/lib/go-1.24/src/runtime/panic.go:792 +0x132
-github.com/bugsnag/bugsnag-go/v2.crashyHandler({0x8b8f60?, 0xc000114a50?}, 0x799d60?)
+github.com/bugsnag/bugsnag-go/v2.crashyHandler({0x8b8f60?, 0xc000255530?}, 0x799d60?)
 	/build/reproducible-path/golang-github-bugsnag-bugsnag-go-2.5.1/_build/src/github.com/bugsnag/bugsnag-go/v2/bugsnag_test.go:28 +0x37
-github.com/bugsnag/bugsnag-go/v2.HandlerFunc.func1({0x8b8c08, 0xc0001500e0}, 0xc000172140)
+github.com/bugsnag/bugsnag-go/v2.HandlerFunc.func1({0x8b8c08, 0xc000234460}, 0xc000245680)
 	/build/reproducible-path/golang-github-bugsnag-bugsnag-go-2.5.1/_build/src/github.com/bugsnag/bugsnag-go/v2/bugsnag.go:214 +0x1f4
-net/http.HandlerFunc.ServeHTTP(0x473c59?, {0x8b8c08?, 0xc0001500e0?}, 0xc000324b70?)
+net/http.HandlerFunc.ServeHTTP(0x473c59?, {0x8b8c08?, 0xc000234460?}, 0xc000262b70?)
 	/usr/lib/go-1.24/src/net/http/server.go:2294 +0x29
-net/http.serverHandler.ServeHTTP({0xc000114930?}, {0x8b8c08?, 0xc0001500e0?}, 0x1?)
+net/http.serverHandler.ServeHTTP({0xc000255290?}, {0x8b8c08?, 0xc000234460?}, 0x1?)
 	/usr/lib/go-1.24/src/net/http/server.go:3301 +0x8e
-net/http.(*conn).serve(0xc0001283f0, {0x8b8f60, 0xc000314840})
+net/http.(*conn).serve(0xc0001f2900, {0x8b8f60, 0xc000255170})
 	/usr/lib/go-1.24/src/net/http/server.go:2102 +0x625
-created by net/http.(*Server).Serve in goroutine 25
+created by net/http.(*Server).Serve in goroutine 40
 	/usr/lib/go-1.24/src/net/http/server.go:3454 +0x485
-=== RUN   TestHandlerFunc/handled
---- PASS: TestHandlerFunc (0.00s)
-    --- PASS: TestHandlerFunc/unhandled (0.00s)
-    --- PASS: TestHandlerFunc/handled (0.00s)
-=== RUN   TestHandler
---- PASS: TestHandler (0.00s)
+--- PASS: TestHandler (0.03s)
 === RUN   TestAutoNotify
 --- PASS: TestAutoNotify (0.00s)
 === RUN   TestRecover
@@ -1173,9 +1239,9 @@
 === RUN   TestHttpRequestMiddleware
 --- PASS: TestHttpRequestMiddleware (0.00s)
 === RUN   TestPanicHandlerHandledPanic
---- PASS: TestPanicHandlerHandledPanic (0.01s)
+--- PASS: TestPanicHandlerHandledPanic (0.13s)
 === RUN   TestPanicHandlerUnhandledPanic
---- PASS: TestPanicHandlerUnhandledPanic (0.01s)
+--- PASS: TestPanicHandlerUnhandledPanic (0.16s)
 === RUN   TestMarshalEmptyPayload
 --- PASS: TestMarshalEmptyPayload (0.00s)
 === RUN   TestMarshalLargePayload
@@ -1196,7 +1262,7 @@
 === RUN   TestStackframesAreSkippedCorrectly/bugsnag.AutoNotify
 === RUN   TestStackframesAreSkippedCorrectly/notifier.Recover
 === RUN   TestStackframesAreSkippedCorrectly/bugsnag.Recover
---- PASS: TestStackframesAreSkippedCorrectly (0.00s)
+--- PASS: TestStackframesAreSkippedCorrectly (0.01s)
     --- PASS: TestStackframesAreSkippedCorrectly/notifier.Notify (0.00s)
     --- PASS: TestStackframesAreSkippedCorrectly/bugsnag.Notify (0.00s)
     --- PASS: TestStackframesAreSkippedCorrectly/notifier.NotifySync (0.00s)
@@ -1215,48 +1281,48 @@
 === RUN   ExampleRecover
 --- PASS: ExampleRecover (0.00s)
 PASS
-2026/04/10 06:30:13 bugsnag/notifier.Notify: panic! unexpected call to os.Exit(0) during test
---- PASS: TestConfigure (0.10s)
+2025/03/08 00:11:25 bugsnag/notifier.Notify: panic! unexpected call to os.Exit(0) during test
+--- PASS: TestConfigure (0.33s)
 === RUN   TestNotify
---- PASS: TestNotify (0.00s)
+--- PASS: TestNotify (0.01s)
 === RUN   TestNotifySyncThenAsync
 --- PASS: TestNotifySyncThenAsync (0.00s)
 === RUN   TestHandlerFunc
 === RUN   TestHandlerFunc/unhandled
-2026/04/10 06:30:13 http: panic serving 127.0.0.1:60140: send on closed channel
-goroutine 70 [running]:
+2025/03/08 00:11:25 http: panic serving 127.0.0.1:50486: send on closed channel
+goroutine 80 [running]:
 net/http.(*conn).serve.func1()
 	/usr/lib/go-1.24/src/net/http/server.go:1947 +0xbe
 panic({0x7b2400?, 0x8b3350?})
 	/usr/lib/go-1.24/src/runtime/panic.go:792 +0x132
-github.com/bugsnag/bugsnag-go/v2.(*Notifier).AutoNotify(0xc00020e3a0, {0xc000114910, 0x1, 0x1})
+github.com/bugsnag/bugsnag-go/v2.(*Notifier).AutoNotify(0xc00024a400, {0xc000233910, 0x1, 0x1})
 	/build/reproducible-path/golang-github-bugsnag-bugsnag-go-2.5.1/_build/src/github.com/bugsnag/bugsnag-go/v2/notifier.go:103 +0x537
 panic({0x7b2400?, 0x8b3350?})
 	/usr/lib/go-1.24/src/runtime/panic.go:792 +0x132
-github.com/bugsnag/bugsnag-go/v2.crashyHandler({0x8b8f60?, 0xc0003083c0?}, 0x799d60?)
+github.com/bugsnag/bugsnag-go/v2.crashyHandler({0x8b8f60?, 0xc000215260?}, 0x799d60?)
 	/build/reproducible-path/golang-github-bugsnag-bugsnag-go-2.5.1/_build/src/github.com/bugsnag/bugsnag-go/v2/bugsnag_test.go:28 +0x37
-github.com/bugsnag/bugsnag-go/v2.HandlerFunc.func1({0x8b8c08, 0xc0003440e0}, 0xc000322140)
+github.com/bugsnag/bugsnag-go/v2.HandlerFunc.func1({0x8b8c08, 0xc00025a380}, 0xc00026a280)
 	/build/reproducible-path/golang-github-bugsnag-bugsnag-go-2.5.1/_build/src/github.com/bugsnag/bugsnag-go/v2/bugsnag.go:214 +0x1f4
-net/http.HandlerFunc.ServeHTTP(0x473c59?, {0x8b8c08?, 0xc0003440e0?}, 0xc000114b70?)
+net/http.HandlerFunc.ServeHTTP(0x473c59?, {0x8b8c08?, 0xc00025a380?}, 0xc000233b70?)
 	/usr/lib/go-1.24/src/net/http/server.go:2294 +0x29
-net/http.serverHandler.ServeHTTP({0xc0003082a0?}, {0x8b8c08?, 0xc0003440e0?}, 0x1?)
+net/http.serverHandler.ServeHTTP({0xc0002150b0?}, {0x8b8c08?, 0xc00025a380?}, 0x1?)
 	/usr/lib/go-1.24/src/net/http/server.go:3301 +0x8e
-net/http.(*conn).serve(0xc0001aa3f0, {0x8b8f60, 0xc0001fff20})
+net/http.(*conn).serve(0xc0002442d0, {0x8b8f60, 0xc000214f90})
 	/usr/lib/go-1.24/src/net/http/server.go:2102 +0x625
-created by net/http.(*Server).Serve in goroutine 56
+created by net/http.(*Server).Serve in goroutine 77
 	/usr/lib/go-1.24/src/net/http/server.go:3454 +0x485
 === RUN   TestHandlerFunc/handled
---- PASS: TestHandlerFunc (0.00s)
-    --- PASS: TestHandlerFunc/unhandled (0.00s)
-    --- PASS: TestHandlerFunc/handled (0.00s)
+--- PASS: TestHandlerFunc (0.02s)
+    --- PASS: TestHandlerFunc/unhandled (0.02s)
+    --- PASS: TestHandlerFunc/handled (0.01s)
 === RUN   TestHandler
---- PASS: TestHandler (0.00s)
+--- PASS: TestHandler (0.01s)
 === RUN   TestAutoNotify
---- PASS: TestAutoNotify (0.00s)
+--- PASS: TestAutoNotify (0.01s)
 === RUN   TestRecover
 --- PASS: TestRecover (0.00s)
 === RUN   TestRecoverCustomHandledState
---- PASS: TestRecoverCustomHandledState (0.00s)
+--- PASS: TestRecoverCustomHandledState (0.01s)
 === RUN   TestSeverityReasonNotifyCallback
 --- PASS: TestSeverityReasonNotifyCallback (0.00s)
 === RUN   TestNotifyWithoutError
@@ -1318,33 +1384,33 @@
 === RUN   TestHttpRequestMiddleware
 --- PASS: TestHttpRequestMiddleware (0.00s)
 === RUN   TestPanicHandlerHandledPanic
---- FAIL: TestPanicHandlerHandledPanic (0.00s)
+--- FAIL: TestPanicHandlerHandledPanic (0.02s)
 panic: runtime error: invalid memory address or nil pointer dereference [recovered]
 	panic: runtime error: invalid memory address or nil pointer dereference
 [signal SIGSEGV: segmentation violation code=0x1 addr=0x18 pc=0x7085e2]
 
-goroutine 160 [running]:
+goroutine 206 [running]:
 testing.tRunner.func1.2({0x7b23a0, 0xaeaee0})
 	/usr/lib/go-1.24/src/testing/testing.go:1734 +0x21c
 testing.tRunner.func1()
 	/usr/lib/go-1.24/src/testing/testing.go:1737 +0x35e
 panic({0x7b23a0?, 0xaeaee0?})
 	/usr/lib/go-1.24/src/runtime/panic.go:792 +0x132
-github.com/bugsnag/bugsnag-go/v2.startPanickingProcess(0xc00058e1c0, {0x820ddd, 0x7}, {0xc00049a300, 0x16})
+github.com/bugsnag/bugsnag-go/v2.startPanickingProcess(0xc0005c61c0, {0x820ddd, 0x7}, {0xc00001f350, 0x16})
 	/build/reproducible-path/golang-github-bugsnag-bugsnag-go-2.5.1/_build/src/github.com/bugsnag/bugsnag-go/v2/panicwrap_test.go:115 +0x2e2
-github.com/bugsnag/bugsnag-go/v2.TestPanicHandlerHandledPanic(0xc00058e1c0)
+github.com/bugsnag/bugsnag-go/v2.TestPanicHandlerHandledPanic(0xc0005c61c0)
 	/build/reproducible-path/golang-github-bugsnag-bugsnag-go-2.5.1/_build/src/github.com/bugsnag/bugsnag-go/v2/panicwrap_test.go:22 +0x93
-testing.tRunner(0xc00058e1c0, 0x844ef0)
+testing.tRunner(0xc0005c61c0, 0x844ef0)
 	/usr/lib/go-1.24/src/testing/testing.go:1792 +0xf4
 created by testing.(*T).Run in goroutine 1
 	/usr/lib/go-1.24/src/testing/testing.go:1851 +0x413
-ok  	github.com/bugsnag/bugsnag-go/v2	0.124s
+ok  	github.com/bugsnag/bugsnag-go/v2	0.547s
 === RUN   TestPristineRuntimeVersions
 --- PASS: TestPristineRuntimeVersions (0.00s)
 === RUN   TestModifiedRuntimeVersions
 --- PASS: TestModifiedRuntimeVersions (0.00s)
 PASS
-ok  	github.com/bugsnag/bugsnag-go/v2/device	0.003s
+ok  	github.com/bugsnag/bugsnag-go/v2/device	0.038s
 === RUN   TestUnwrapErrorsCause
 --- PASS: TestUnwrapErrorsCause (0.00s)
 === RUN   TestParsePanicStack
@@ -1354,7 +1420,7 @@
 === RUN   TestSkipWorks
 --- PASS: TestSkipWorks (0.00s)
 === RUN   TestNewError
---- PASS: TestNewError (0.00s)
+--- PASS: TestNewError (0.02s)
 === RUN   TestUnwrapPkgError
 --- PASS: TestUnwrapPkgError (0.00s)
 === RUN   TestUnwrapCustomCause
@@ -1382,7 +1448,7 @@
 === RUN   TestParseFatalError
 --- PASS: TestParseFatalError (0.00s)
 PASS
-ok  	github.com/bugsnag/bugsnag-go/v2/errors	0.008s
+ok  	github.com/bugsnag/bugsnag-go/v2/errors	0.060s
 === RUN   TestConstantBugsnagPrefixedHeaders
 === RUN   TestConstantBugsnagPrefixedHeaders/Content-Type
 === RUN   TestConstantBugsnagPrefixedHeaders/Bugsnag-Api-Key
@@ -1394,7 +1460,7 @@
 === RUN   TestTimeDependentBugsnagPrefixedHeaders
 --- PASS: TestTimeDependentBugsnagPrefixedHeaders (0.00s)
 PASS
-ok  	github.com/bugsnag/bugsnag-go/v2/headers	0.005s
+ok  	github.com/bugsnag/bugsnag-go/v2/headers	0.064s
 === RUN   TestConfigDoesNotChangeGivenBlankValues
 --- PASS: TestConfigDoesNotChangeGivenBlankValues (0.00s)
 === RUN   TestConfigUpdatesGivenNonDefaultValues
@@ -1403,50 +1469,50 @@
 === RUN   TestSendsCorrectPayloadForSmallConfig/Bugsnag-Payload-Version
 === RUN   TestSendsCorrectPayloadForSmallConfig/Content-Type
 === RUN   TestSendsCorrectPayloadForSmallConfig/Bugsnag-Api-Key
-=== RUN   TestSendsCorrectPayloadForSmallConfig/device.hostname
-=== RUN   TestSendsCorrectPayloadForSmallConfig/notifier.name
-=== RUN   TestSendsCorrectPayloadForSmallConfig/notifier.url
-=== RUN   TestSendsCorrectPayloadForSmallConfig/notifier.version
 === RUN   TestSendsCorrectPayloadForSmallConfig/app.type
 === RUN   TestSendsCorrectPayloadForSmallConfig/app.releaseStage
 === RUN   TestSendsCorrectPayloadForSmallConfig/app.version
 === RUN   TestSendsCorrectPayloadForSmallConfig/device.osName
+=== RUN   TestSendsCorrectPayloadForSmallConfig/device.hostname
+=== RUN   TestSendsCorrectPayloadForSmallConfig/notifier.name
+=== RUN   TestSendsCorrectPayloadForSmallConfig/notifier.url
+=== RUN   TestSendsCorrectPayloadForSmallConfig/notifier.version
 --- PASS: TestSendsCorrectPayloadForSmallConfig (0.00s)
     --- PASS: TestSendsCorrectPayloadForSmallConfig/Bugsnag-Payload-Version (0.00s)
     --- PASS: TestSendsCorrectPayloadForSmallConfig/Content-Type (0.00s)
     --- PASS: TestSendsCorrectPayloadForSmallConfig/Bugsnag-Api-Key (0.00s)
-    --- PASS: TestSendsCorrectPayloadForSmallConfig/device.hostname (0.00s)
-    --- PASS: TestSendsCorrectPayloadForSmallConfig/notifier.name (0.00s)
-    --- PASS: TestSendsCorrectPayloadForSmallConfig/notifier.url (0.00s)
-    --- PASS: TestSendsCorrectPayloadForSmallConfig/notifier.version (0.00s)
     --- PASS: TestSendsCorrectPayloadForSmallConfig/app.type (0.00s)
     --- PASS: TestSendsCorrectPayloadForSmallConfig/app.releaseStage (0.00s)
     --- PASS: TestSendsCorrectPayloadForSmallConfig/app.version (0.00s)
     --- PASS: TestSendsCorrectPayloadForSmallConfig/device.osName (0.00s)
+    --- PASS: TestSendsCorrectPayloadForSmallConfig/device.hostname (0.00s)
+    --- PASS: TestSendsCorrectPayloadForSmallConfig/notifier.name (0.00s)
+    --- PASS: TestSendsCorrectPayloadForSmallConfig/notifier.url (0.00s)
+    --- PASS: TestSendsCorrectPayloadForSmallConfig/notifier.version (0.00s)
 === RUN   TestSendsCorrectPayloadForBigConfig
 === RUN   TestSendsCorrectPayloadForBigConfig/Bugsnag-Payload-Version
 === RUN   TestSendsCorrectPayloadForBigConfig/Content-Type
 === RUN   TestSendsCorrectPayloadForBigConfig/Bugsnag-Api-Key
+=== RUN   TestSendsCorrectPayloadForBigConfig/device.hostname
+=== RUN   TestSendsCorrectPayloadForBigConfig/notifier.name
 === RUN   TestSendsCorrectPayloadForBigConfig/notifier.url
 === RUN   TestSendsCorrectPayloadForBigConfig/notifier.version
 === RUN   TestSendsCorrectPayloadForBigConfig/app.type
 === RUN   TestSendsCorrectPayloadForBigConfig/app.releaseStage
 === RUN   TestSendsCorrectPayloadForBigConfig/app.version
 === RUN   TestSendsCorrectPayloadForBigConfig/device.osName
-=== RUN   TestSendsCorrectPayloadForBigConfig/device.hostname
-=== RUN   TestSendsCorrectPayloadForBigConfig/notifier.name
 --- PASS: TestSendsCorrectPayloadForBigConfig (0.00s)
     --- PASS: TestSendsCorrectPayloadForBigConfig/Bugsnag-Payload-Version (0.00s)
     --- PASS: TestSendsCorrectPayloadForBigConfig/Content-Type (0.00s)
     --- PASS: TestSendsCorrectPayloadForBigConfig/Bugsnag-Api-Key (0.00s)
+    --- PASS: TestSendsCorrectPayloadForBigConfig/device.hostname (0.00s)
+    --- PASS: TestSendsCorrectPayloadForBigConfig/notifier.name (0.00s)
     --- PASS: TestSendsCorrectPayloadForBigConfig/notifier.url (0.00s)
     --- PASS: TestSendsCorrectPayloadForBigConfig/notifier.version (0.00s)
     --- PASS: TestSendsCorrectPayloadForBigConfig/app.type (0.00s)
     --- PASS: TestSendsCorrectPayloadForBigConfig/app.releaseStage (0.00s)
     --- PASS: TestSendsCorrectPayloadForBigConfig/app.version (0.00s)
     --- PASS: TestSendsCorrectPayloadForBigConfig/device.osName (0.00s)
-    --- PASS: TestSendsCorrectPayloadForBigConfig/device.hostname (0.00s)
-    --- PASS: TestSendsCorrectPayloadForBigConfig/notifier.name (0.00s)
 === RUN   TestNoSessionsSentWhenAPIKeyIsMissing
 --- PASS: TestNoSessionsSentWhenAPIKeyIsMissing (0.00s)
 === RUN   TestNoSessionsOutsideNotifyReleaseStages
@@ -1456,7 +1522,7 @@
 === RUN   TestStartSessionModifiesContext
 --- PASS: TestStartSessionModifiesContext (0.00s)
 === RUN   TestShouldOnlyWriteWhenReceivingSessions
---- PASS: TestShouldOnlyWriteWhenReceivingSessions (0.65s)
+--- PASS: TestShouldOnlyWriteWhenReceivingSessions (1.17s)
 === RUN   TestStartSession
 === RUN   TestConfigDoesNotChangeGivenBlankValues
 --- PASS: TestConfigDoesNotChangeGivenBlankValues (0.00s)
@@ -1466,7 +1532,6 @@
 === RUN   TestSendsCorrectPayloadForSmallConfig/Bugsnag-Payload-Version
 === RUN   TestSendsCorrectPayloadForSmallConfig/Content-Type
 === RUN   TestSendsCorrectPayloadForSmallConfig/Bugsnag-Api-Key
-=== RUN   TestSendsCorrectPayloadForSmallConfig/notifier.version
 === RUN   TestSendsCorrectPayloadForSmallConfig/app.type
 === RUN   TestSendsCorrectPayloadForSmallConfig/app.releaseStage
 === RUN   TestSendsCorrectPayloadForSmallConfig/app.version
@@ -1474,11 +1539,11 @@
 === RUN   TestSendsCorrectPayloadForSmallConfig/device.hostname
 === RUN   TestSendsCorrectPayloadForSmallConfig/notifier.name
 === RUN   TestSendsCorrectPayloadForSmallConfig/notifier.url
+=== RUN   TestSendsCorrectPayloadForSmallConfig/notifier.version
 --- PASS: TestSendsCorrectPayloadForSmallConfig (0.00s)
     --- PASS: TestSendsCorrectPayloadForSmallConfig/Bugsnag-Payload-Version (0.00s)
     --- PASS: TestSendsCorrectPayloadForSmallConfig/Content-Type (0.00s)
     --- PASS: TestSendsCorrectPayloadForSmallConfig/Bugsnag-Api-Key (0.00s)
-    --- PASS: TestSendsCorrectPayloadForSmallConfig/notifier.version (0.00s)
     --- PASS: TestSendsCorrectPayloadForSmallConfig/app.type (0.00s)
     --- PASS: TestSendsCorrectPayloadForSmallConfig/app.releaseStage (0.00s)
     --- PASS: TestSendsCorrectPayloadForSmallConfig/app.version (0.00s)
@@ -1486,10 +1551,12 @@
     --- PASS: TestSendsCorrectPayloadForSmallConfig/device.hostname (0.00s)
     --- PASS: TestSendsCorrectPayloadForSmallConfig/notifier.name (0.00s)
     --- PASS: TestSendsCorrectPayloadForSmallConfig/notifier.url (0.00s)
+    --- PASS: TestSendsCorrectPayloadForSmallConfig/notifier.version (0.00s)
 === RUN   TestSendsCorrectPayloadForBigConfig
 === RUN   TestSendsCorrectPayloadForBigConfig/Bugsnag-Payload-Version
 === RUN   TestSendsCorrectPayloadForBigConfig/Content-Type
 === RUN   TestSendsCorrectPayloadForBigConfig/Bugsnag-Api-Key
+=== RUN   TestSendsCorrectPayloadForBigConfig/app.releaseStage
 === RUN   TestSendsCorrectPayloadForBigConfig/app.version
 === RUN   TestSendsCorrectPayloadForBigConfig/device.osName
 === RUN   TestSendsCorrectPayloadForBigConfig/device.hostname
@@ -1497,11 +1564,11 @@
 === RUN   TestSendsCorrectPayloadForBigConfig/notifier.url
 === RUN   TestSendsCorrectPayloadForBigConfig/notifier.version
 === RUN   TestSendsCorrectPayloadForBigConfig/app.type
-=== RUN   TestSendsCorrectPayloadForBigConfig/app.releaseStage
---- PASS: TestSendsCorrectPayloadForBigConfig (0.00s)
+--- PASS: TestSendsCorrectPayloadForBigConfig (0.01s)
     --- PASS: TestSendsCorrectPayloadForBigConfig/Bugsnag-Payload-Version (0.00s)
     --- PASS: TestSendsCorrectPayloadForBigConfig/Content-Type (0.00s)
     --- PASS: TestSendsCorrectPayloadForBigConfig/Bugsnag-Api-Key (0.00s)
+    --- PASS: TestSendsCorrectPayloadForBigConfig/app.releaseStage (0.00s)
     --- PASS: TestSendsCorrectPayloadForBigConfig/app.version (0.00s)
     --- PASS: TestSendsCorrectPayloadForBigConfig/device.osName (0.00s)
     --- PASS: TestSendsCorrectPayloadForBigConfig/device.hostname (0.00s)
@@ -1509,7 +1576,6 @@
     --- PASS: TestSendsCorrectPayloadForBigConfig/notifier.url (0.00s)
     --- PASS: TestSendsCorrectPayloadForBigConfig/notifier.version (0.00s)
     --- PASS: TestSendsCorrectPayloadForBigConfig/app.type (0.00s)
-    --- PASS: TestSendsCorrectPayloadForBigConfig/app.releaseStage (0.00s)
 === RUN   TestNoSessionsSentWhenAPIKeyIsMissing
 --- PASS: TestNoSessionsSentWhenAPIKeyIsMissing (0.00s)
 === RUN   TestNoSessionsOutsideNotifyReleaseStages
@@ -1522,31 +1588,55 @@
 === RUN   TestStartSession/Bugsnag-Payload-Version
 === RUN   TestStartSession/Content-Type
 === RUN   TestStartSession/Bugsnag-Api-Key
---- PASS: TestStartSession (0.87s)
+=== RUN   TestStartSession/Bugsnag-Payload-Version#01
+=== RUN   TestStartSession/Content-Type#01
+=== RUN   TestStartSession/Bugsnag-Api-Key#01
+=== RUN   TestStartSession/Bugsnag-Payload-Version#02
+=== RUN   TestStartSession/Content-Type#02
+=== RUN   TestStartSession/Bugsnag-Api-Key#02
+--- PASS: TestStartSession (1.38s)
     --- PASS: TestStartSession/Bugsnag-Payload-Version (0.00s)
     --- PASS: TestStartSession/Content-Type (0.00s)
     --- PASS: TestStartSession/Bugsnag-Api-Key (0.00s)
+    --- PASS: TestStartSession/Bugsnag-Payload-Version#01 (0.00s)
+    --- PASS: TestStartSession/Content-Type#01 (0.00s)
+    --- PASS: TestStartSession/Bugsnag-Api-Key#01 (0.00s)
+    --- PASS: TestStartSession/Bugsnag-Payload-Version#02 (0.00s)
+    --- PASS: TestStartSession/Content-Type#02 (0.00s)
+    --- PASS: TestStartSession/Bugsnag-Api-Key#02 (0.00s)
 PASS
---- PASS: TestShouldOnlyWriteWhenReceivingSessions (0.66s)
+--- PASS: TestShouldOnlyWriteWhenReceivingSessions (0.98s)
 === RUN   TestStartSession
-2026/04/10 06:30:16 bugsnag/notifier.Notify: panic! unexpected call to os.Exit(0) during test
+2025/03/08 00:11:27 bugsnag/notifier.Notify: panic! unexpected call to os.Exit(0) during test
 === RUN   TestStartSession/Bugsnag-Payload-Version
 === RUN   TestStartSession/Content-Type
 === RUN   TestStartSession/Bugsnag-Api-Key
 === RUN   TestStartSession/Bugsnag-Payload-Version#01
 === RUN   TestStartSession/Content-Type#01
 === RUN   TestStartSession/Bugsnag-Api-Key#01
+=== RUN   TestStartSession/Bugsnag-Payload-Version#02
+=== RUN   TestStartSession/Content-Type#02
+=== RUN   TestStartSession/Bugsnag-Api-Key#02
+=== RUN   TestStartSession/Bugsnag-Payload-Version#03
+=== RUN   TestStartSession/Content-Type#03
+=== RUN   TestStartSession/Bugsnag-Api-Key#03
 === NAME  TestStartSession
     integration_test.go:118: Expected 50000 sessions started, but was 50001
---- FAIL: TestStartSession (0.86s)
+--- FAIL: TestStartSession (1.26s)
     --- PASS: TestStartSession/Bugsnag-Payload-Version (0.00s)
     --- PASS: TestStartSession/Content-Type (0.00s)
     --- PASS: TestStartSession/Bugsnag-Api-Key (0.00s)
     --- PASS: TestStartSession/Bugsnag-Payload-Version#01 (0.00s)
     --- PASS: TestStartSession/Content-Type#01 (0.00s)
     --- PASS: TestStartSession/Bugsnag-Api-Key#01 (0.00s)
+    --- PASS: TestStartSession/Bugsnag-Payload-Version#02 (0.00s)
+    --- PASS: TestStartSession/Content-Type#02 (0.00s)
+    --- PASS: TestStartSession/Bugsnag-Api-Key#02 (0.00s)
+    --- PASS: TestStartSession/Bugsnag-Payload-Version#03 (0.00s)
+    --- PASS: TestStartSession/Content-Type#03 (0.00s)
+    --- PASS: TestStartSession/Bugsnag-Api-Key#03 (0.00s)
 FAIL
-ok  	github.com/bugsnag/bugsnag-go/v2/sessions	2.643s
+ok  	github.com/bugsnag/bugsnag-go/v2/sessions	3.900s
 ?   	github.com/bugsnag/bugsnag-go/v2/testutil	[no test files]
    create-stamp debian/debhelper-build-stamp
    dh_testroot -O--builddirectory=_build -O--buildsystem=golang
@@ -1575,12 +1665,14 @@
 dpkg-buildpackage: info: binary-only upload (no source included)
 dpkg-genchanges: info: including full source code in upload
 I: copying local configuration
+I: user script /srv/workspace/pbuilder/291514/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/291514/tmp/hooks/B01_cleanup finished
 I: unmounting dev/ptmx filesystem
 I: unmounting dev/pts filesystem
 I: unmounting dev/shm filesystem
 I: unmounting proc filesystem
 I: unmounting sys filesystem
 I: cleaning the build env 
-I: removing directory /srv/workspace/pbuilder/2499181 and its subdirectories
-I: Current time: Thu Apr  9 18:30:23 -12 2026
-I: pbuilder-time-stamp: 1775802623
+I: removing directory /srv/workspace/pbuilder/291514 and its subdirectories
+I: Current time: Sat Mar  8 14:12:02 +14 2025
+I: pbuilder-time-stamp: 1741392722