diff --git a/.gitignore b/.gitignore
index d4538f4..ec1b83e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -146,3 +146,7 @@
 /thunderbird-langpacks-128.8.0esr-20250305.tar.xz
 /thunderbird-128.9.0esr.processed-source.tar.xz
 /thunderbird-langpacks-128.9.0esr-20250326.tar.xz
+/thunderbird-128.9.2esr.processed-source.tar.xz
+/thunderbird-langpacks-128.9.2esr-20250416.tar.xz
+/thunderbird-128.10.0esr.processed-source.tar.xz
+/thunderbird-langpacks-128.10.0esr-20250428.tar.xz
diff --git a/sources b/sources
index a5e35b9..161399f 100644
--- a/sources
+++ b/sources
@@ -2,5 +2,5 @@ SHA512 (nspr-4.35.0-1.el8_1.src.rpm) = 5123a443fcc42602e31104999be339ae899eb7b1f
 SHA512 (cbindgen-vendor.tar.xz) = 0c7a40033ccd38dadd30ad064feef390444af4562be07d3dfd0c4cccc55821b01b5228ddee367d0af3bd1b4ef9b1552cdd104506579b020ac1940a7c536b8b68
 SHA512 (nss-3.101.0-7.el9_2.src.rpm) = 7c325e0e437c1266031af02b3a026d20b789548ae435be6c39d710aa9d19c967ac0a79097fd50dd8ab878bf0d72c19e937d54863aa8cd0654ef2ef288e3102ec
 SHA512 (nss-3.101.0-7.el8_2.src.rpm) = c25551b06cf9239bb54aaf3edaea2c60804b449de4e06af4f5192bc181b5c6468ea8a69ddeff9de1b11bfc123e894b1ce8fc5d6deddfd5062f8736b75db56f8d
-SHA512 (thunderbird-128.9.0esr.b3.processed-source.tar.xz) = 445e2895574e121216467ef9d27f7fc287180257afdbb58e6b1a333dc9d26afaacacbf22588192c9ce31a84895b89998f7285eed154f458b61cf3ad9ddf9fb8d
-SHA512 (thunderbird-langpacks-128.9.0esr-20250331.tar.xz) = 0d80d78e4ba833bf6b3c66e89dc88d65fa3a66332acfc4dd984a63e39f477061c5e49d06ac81f3d0c30a96fcfb3111cb0ee075efda7077d645c31cc08dd27d96
+SHA512 (thunderbird-128.10.0esr.processed-source.tar.xz) = e1c886a2992a4f5c807e707383a6d88b3fa36b233c9d6f0db3f051953ab38f4bfd012648f46333fa0a7fe45672e3ac558038c230d1c963b13093d0cc5e5cbe07
+SHA512 (thunderbird-langpacks-128.10.0esr-20250428.tar.xz) = 12e5b4a619d9a08e38fb0de77d2a9ba6ca96cb4fd22529e313d09030e8c5498c00cded08b66dd7bc78789912b9e7d5865bbea0297e6703613c99caaf4de0ae06
diff --git a/thunderbird.spec b/thunderbird.spec
index 1e010a5..e01e255 100644
--- a/thunderbird.spec
+++ b/thunderbird.spec
@@ -35,7 +35,7 @@ function dist_to_rhel_minor(str, start)
   end
   match = string.match(str, ".el9")
   if match then
-     return 6
+     return 7
   end
   match = string.match(str, ".el10_%d+")
   if match then
@@ -43,7 +43,7 @@ function dist_to_rhel_minor(str, start)
   end
   match = string.match(str, ".el10")
   if match then
-     return 0
+     return 1
   end
   return -1
 end}
@@ -88,7 +88,7 @@ end}
 
 %if 0%{?rhel} > 7 && 0%{?rhel} < 10
   %global use_gcc_ts      1
-  %if 0%{?rhel} == 9 && %{rhel_minor_version} >= 6
+  %if (0%{?rhel} == 9 && %{rhel_minor_version} >= 6) || (0%{?rhel} == 8 && %{rhel_minor_version} >= 10)
     # clang depends on gcc-toolset-14-gcc-c++
     %global gts_version 14
   %else
@@ -127,7 +127,7 @@ end}
 # If set to .b2 or .b3 ... the processed source file needs to be renamed before upload, e.g.
 # thunderbird-102.8.0.b2.processed-source.tar.xz
 # When unset use processed source file name as is.
-%global buildnum .b3
+#%%global buildnum .b2
 
 %bcond_without langpacks
 
@@ -137,8 +137,8 @@ end}
 
 Summary:        Mozilla Thunderbird mail/newsgroup client
 Name:           thunderbird
-Version:        128.9.0
-Release:        2%{?dist}.alma.1
+Version:        128.10.0
+Release:        1%{?dist}.alma.1
 URL:            http://www.mozilla.org/projects/thunderbird/
 License:        MPLv1.1 or GPLv2+ or LGPLv2+
 
@@ -165,7 +165,7 @@ ExcludeArch:    %{ix86}
 #Source0:        https://archive.mozilla.org/pub/thunderbird/releases/%%{version}%%{?pre_version}/source/thunderbird-%%{version}%%{?pre_version}.processed-source.tar.xz
 Source0:        thunderbird-%{version}%{?pre_version}%{?buildnum}.processed-source.tar.xz
 %if %{with langpacks}
-Source1:        thunderbird-langpacks-%{version}%{?pre_version}-20250331.tar.xz
+Source1:        thunderbird-langpacks-%{version}%{?pre_version}-20250428.tar.xz
 %endif
 Source2:        cbindgen-vendor.tar.xz
 Source3:        process-official-tarball
@@ -333,8 +333,9 @@ BuildRequires: gcc-toolset-%{gts_version}-runtime
 BuildRequires: gcc-toolset-%{gts_version}-binutils
 BuildRequires: gcc-toolset-%{gts_version}-gcc
 BuildRequires: gcc-toolset-%{gts_version}-gcc-plugin-annobin
-# Do not explicitly require gcc-toolset-%%{gts_version}-gcc-g++ instead fail
+# Do not explicitly require gcc-toolset-%%{gts_version}-gcc-c++ instead fail
 # when clang is upgraded to depend on a later toolset and adjust version.
+# ERROR: The target C compiler is version 13.3.1, while the target C++ compiler is version 8.5.0. Need to use the same compiler version.
 %endif
 
 %if %{?use_openssl_for_librnp}
@@ -1658,9 +1659,15 @@ gtk-update-icon-cache %{_datadir}/icons/hicolor &>/dev/null || :
 #===============================================================================
 
 %changelog
-* Tue Apr 15 2025 Eduard Abdullin <eabdullin@almalinux.org> - 128.9.0-2.alma.1
+* Tue May 06 2025 Eduard Abdullin <eabdullin@almalinux.org> - 128.10.0-1.alma.1
 - AlmaLinux changes
 
+* Mon Apr 28 2025 Eike Rathke <erack@redhat.com> - 128.10.0-1
+- Update to 128.10.0 build1
+
+* Wed Apr 16 2025 Eike Rathke <erack@redhat.com> - 128.9.2-1
+- Update to 128.9.2
+
 * Mon Mar 31 2025 Eike Rathke <erack@redhat.com> - 128.9.0-2
 - Update to 128.9.0 build3