$ git diff --patch-with-stat --summary 5d43a3d097d7bea6825221395a3aaf06e6b91b85..dacca594627b414011383e5082aec444ac6e946b

 .abf.yml         | 102 +++++++++++++++++++++++++++----------------------------
 thunderbird.spec |  21 ++++++++----
 2 files changed, 66 insertions(+), 57 deletions(-)

diff --git a/.abf.yml b/.abf.yml
index 78aa36b..5dad41e 100644
--- a/.abf.yml
+++ b/.abf.yml
@@ -1,53 +1,53 @@
 sources:
-  ar.xpi: 9b9c358162c4ade6128b24152882d956a551d561
-  ast.xpi: d4d1fd693d20404168aaa4fbea358739d2d6c369
-  be.xpi: e90727b54140cee332fae72d5e038ae2b16edf17
-  bg.xpi: 5f66b936897f532194d8b8d5a4b8be6b941f891a
-  br.xpi: 7fb19c0f2e0a4674a41713e4e5daad53655a5f59
-  ca.xpi: 3cfeca9e3a82aca12253740393e32db3c51ac5e5
-  cs.xpi: fee5f5d9a736470ecadda9d8843e99b8470ad091
-  da.xpi: 545593c8593224e627c32bb3db4859898a22e1e3
-  de.xpi: d9b6ab33f545e536ff7c0ff414db29c6f6015820
-  el.xpi: f5af9cdd033f532acaf202068cfb53bb558de34f
-  en-GB.xpi: 66a6fff4ec16dd466eef19faa353c4761c0f45df
-  en-US.xpi: 5bea15954ade325d280352a26d95f1f128fdd3ed
-  es-AR.xpi: cdfe5ac8d06f374ed9edb354a8591bc737108cdd
-  es-ES.xpi: f7f9ead66a0dab6e9ad2f3cb4f243a731843fede
-  et.xpi: ca6057a3d8cb91478c173b25e508e878cbbe8191
-  eu.xpi: 9bb33da46c7997f757fa4d1162a29738f5b2e2a1
-  fi.xpi: 0e433e3daf455a27313af3cd263226f86bf26f28
-  fr.xpi: 03bf09a1ee451c4f2b17681195b35c0f9bb146d1
-  fy-NL.xpi: 2d68e479395ebfd972c5f8e89f6c6b613cac6882
-  ga-IE.xpi: d875f420f7d0c79ebb459accf3561c7998eb048c
-  gd.xpi: 6b220725d7e45bd326c8148c1a443e65576a9dff
-  gl.xpi: bab066251172c5841e3a1ff5c240ab5b975e272e
-  he.xpi: 7919de4d3110825579ac2fca29921026c7b3606a
-  hr.xpi: 097620b133514b0ee893ffdf5d2ac66ce3bebb6e
-  hu.xpi: b44c988652acc6e19533c15efa3a741c81ec7b99
-  hy-AM.xpi: 7fe543516b8b009591779c4176ebaf8c2bb22b50
-  id.xpi: 0342283d787880a067fdd8885797ad6ce5571504
-  is.xpi: 9e875be45b27b7bf0c8bb1e4b273a85e98a8f394
-  it.xpi: 1868dec8fa8ec0d96ae9486538f449fa3003692d
-  ja.xpi: d492e9c32892061d95dc7117d1ef31bdf1239783
-  ko.xpi: 3480eab0a0eebd90d943718c6593c080295c61fc
-  lt.xpi: b389685f63408a58f088fe1256f45e421c12f81b
-  nb-NO.xpi: ed19d9023fdf6c44f374cfd63f00f743b7e93ee3
-  nl.xpi: 128b781b627c240b522e4d3c0b6e169b9ade98fb
-  nn-NO.xpi: 86be61f660b3f2a47e8294bf12d9ce5acc97609c
+  ar.xpi: 649235e3551f5f767140281e0846eda9f69317a1
+  ast.xpi: 14b2818d587b2efc439257801785b316741aca91
+  be.xpi: 980d6899048a6924282db5cccc06b557cac4c565
+  bg.xpi: 8deefc7268895abb40059b757971910d95f83f14
+  br.xpi: bb48e9010e0e914a2df757ee3a8dba916142ba3c
+  ca.xpi: e850b2c647492212b9592f96f1a5233c80886335
+  cs.xpi: 25e2d224fb8688d0d71d4fc147a15d469fc6563d
+  da.xpi: d1bf9de5cccf67034e4c94e45aff1d45682225b1
+  de.xpi: 0f4017d4bddb23e634bc6ba127172aca0b365aae
+  el.xpi: f97f478bef376e617063d701c132cdb5690dde76
+  en-GB.xpi: 2bf88aed661a6a4a2814c16eeb82811e8bcd6ecb
+  en-US.xpi: ad73fc9e220db555811684283363da1a61a4ecae
+  es-AR.xpi: c34540ce70d52dbebe1a2b8fce5cedaadd04f56a
+  es-ES.xpi: caa63a619ce614411bfdc2a51d5dfc2600bfa7bf
+  et.xpi: 77bc60c909fccb01ada00903635f718a966f6b54
+  eu.xpi: 4813444f11d81d4bb7548bc76471470ba2afab4e
+  fi.xpi: 0ced954ee5c78fa6ea9fa23dedd439c97569ff0e
+  fr.xpi: b9b49ac3e9d13ba5302af8da6433b00b38e9cdcf
+  fy-NL.xpi: c78f8ed28d42c2a4eb72c9ac3e7f430e8832061f
+  ga-IE.xpi: 067f6dff81081d4fb4be1ba9d24ef74152204e3b
+  gd.xpi: 8761d39cb74e52abc245e4d87c0adc7aaab8a95a
+  gl.xpi: 2ada090866e2c49ee975161cb1e0567554854cb2
+  he.xpi: 6bf6ac8f83e3e4e1071daa9b310c3e1b765da965
+  hr.xpi: eefb90e1a9c74efc7108928bc88694de9124bbb1
+  hu.xpi: b70cfa00be579f701c9b39488c10d8d1a817537b
+  hy-AM.xpi: 33a1c20517cc0c85da4c833b8afcfafd07cd1ee7
+  id.xpi: 07a9c066b1bc20aaff45c0842b1c4763ad853df9
+  is.xpi: 68e30799ed0516cd09c5e3d3bb1fc349c1905e82
+  it.xpi: 70aa5c1ed3ffc542a904f0b82382fecb78134a57
+  ja.xpi: 3a76a1d738f9d4b3e08b7bd1db6b1284da13a366
+  ko.xpi: 710790dddaedeef1d1b06f5f2ccef77de81addc5
+  lt.xpi: 196f168e42f24f0d6e94d1e62d9b850606eafd07
+  nb-NO.xpi: ffe258ef23c8d49eae9a247b1f910643d40e6ddd
+  nl.xpi: 5d136facba16422c0411b4533bc4844891f78bcf
+  nn-NO.xpi: 6cbd7d7182e0927c118eee183fec873956971f57
   pa-IN.xpi: 6aee55e1bc6519ba0f38731ffb937123059e7add
-  pl.xpi: 65c4fc22208c54928c1ee3cab5c490b5eafd6ddb
-  pt-BR.xpi: 9939e4a97b2226071132a5f23d3c741b5206e330
-  pt-PT.xpi: 06b11c7ced31bf8309e7d41afd57d98ddd376c67
-  ro.xpi: 3f8ee1fe611b5b013cf2e0323647e49616fbab6a
-  ru.xpi: 3ed5c9d0f13d5fa1c502e66184e70994d493a943
-  sk.xpi: c16ab2464454491fc34ac08e8d97d5188c8b73ac
-  sl.xpi: 56c3c9d3bea7445dcd8fa27adf0adaeaecd8c3a0
-  sq.xpi: 9828d2296ee6235698741acd18743339d6423c06
-  sr.xpi: b8fe31ac98f452882268bc44baf16410d4458405
-  sv-SE.xpi: fae18803e091de3f3dde502b98c6202c3fe05303
-  thunderbird-91.9.0.source.tar.xz: c61a0b9c181733eb76e89f837856bc83f1535d3a
-  tr.xpi: a2038e55c2815bbb36e65145778348a2935b1048
-  uk.xpi: 5379456ee45151dec30b8ab42ad5084dc3c168e4
-  vi.xpi: b3fe3a04f33ee052e75819275f0960b6b97796d7
-  zh-CN.xpi: 6ca83247d6ffbf234ff79b2a59a1c435fe30eff0
-  zh-TW.xpi: fa71bb108bd50308f5b4cd5986ae0e4dfc6cb9db
+  pl.xpi: 98120f1454d90982af4693d8073df81795749483
+  pt-BR.xpi: 5ae4844d81005c3ebd8af576954ffee5e55ee5a2
+  pt-PT.xpi: e84b3cc8026a25881e6645c173e123fe467eff6a
+  ro.xpi: c2e19f19906175c3b897a4c3971f56002aceff5d
+  ru.xpi: 68917f6d0bd0a8146d7f550e578aea806acf2504
+  sk.xpi: cd094ac64da2ba96e83c39b48f18b6d60606d77b
+  sl.xpi: 9082c5d6896fb4b58df43f6a3a17a6cca55dd239
+  sq.xpi: f345f7a4216b918ac915f1fb02d903db4edb1935
+  sr.xpi: 929f990efc956e03460f0c419b206f15cb1c6017
+  sv-SE.xpi: 687f2b2d3cd380b508bd6dedb97689b1bc217656
+  thunderbird-91.10.0.source.tar.xz: a3487cb73e562d2801943b053de333522408f997
+  tr.xpi: 5bf5b08ac2019ab91abe8f42e9d4ddc51cd41075
+  uk.xpi: 174eab16ed9191e2984cd12697ae203a532bb339
+  vi.xpi: beae49702a6b92b107904a36290f925ad36773d8
+  zh-CN.xpi: a62a3aa681614640d80da1ebb032038e36bf262a
+  zh-TW.xpi: d7e15117efcb72c1c01593f9777c0b281777247b
diff --git a/thunderbird.spec b/thunderbird.spec
index a8083b1..6426310 100644
--- a/thunderbird.spec
+++ b/thunderbird.spec
@@ -34,6 +34,12 @@
 %endif # x86_64
 %endif # ix86
 
+%if %omvver > 4050000
+%define build_py python3.9
+%else
+%define build_py python3
+%endif
+
 # this seems fragile, so require the exact version or later (#58754)
 %define sqlite3_libname %{mklibname sqlite3_ 0}
 %define sqlite3_version %(pkg-config --modversion sqlite3 &>/dev/null && pkg-config --modversion sqlite3 2>/dev/null || echo 0)
@@ -201,7 +207,7 @@
 
 Summary:	Full-featured email, RSS, and newsgroup client
 Name:		thunderbird
-Version:	91.9.0
+Version:	91.10.0
 Release:	1
 License:	MPL
 Group:		Networking/Mail
@@ -250,16 +256,19 @@ Patch304:       mozilla-thunderbird-run-mozilla.patch
 # OpenSuse patches (Patch400+)
 
 BuildRequires:	gzip
-BuildRequires:	python
 BuildRequires:	unzip
 BuildRequires:	yasm >= 1.0.1
 BuildRequires:	nasm
 BuildRequires:	zip
 BuildRequires:	jpeg-devel
-BuildRequires:	libiw-devel
 BuildRequires:	nss-static-devel
+BuildRequires:	glibc-static-devel
 BuildRequires:	icu-devel
-BuildRequires:	pkgconfig(python3)
+%if %omvver <= 4050000
+BuildRequires:  pkgconfig(python3)
+%else
+BuildRequires:  pkgconfig(python-3.9)
+%endif
 BuildRequires:	pkgconfig(alsa)
 BuildRequires:	pkgconfig(dbus-glib-1)
 BuildRequires:	pkgconfig(fontconfig)
@@ -428,7 +437,7 @@ EOF
 export MACH_USE_SYSTEM_PYTHON=1
 export MACH_NO_WRITE_TIMES=1
 
-./mach build
+%build_py ./mach build
 
 #===============================================================================
 
@@ -441,7 +450,7 @@ mkdir -p %buildroot%tbdir
 
 #rm -f extensions/spellcheck/locales/en-US/hunspell/en-US.{dic,aff}
 
-DESTDIR=%buildroot STRIP=/bin/true MOZ_PKG_FATAL_WARNINGS=0 ./mach install
+DESTDIR=%buildroot STRIP=/bin/true MOZ_PKG_FATAL_WARNINGS=0 %build_py ./mach install
 
 rm -rf %buildroot%tbdir/dictionaries
 ln -s /usr/share/dict/mozilla %buildroot%tbdir/dictionaries