2.23.0: Precompiled support for Ruby 4.0

Added

• Add support for Ruby 4.0 in precompiled, native gems.

---

SHA256 checksums:

9b2fa8b565574ed5adad20f3b0af75842fe7913d638edce435b9be68ae70f792  re2-2.23.0-aarch64-linux-gnu.gem
23ab13c80a412ac14fdefb74080dce86d678ac879c2a32865ba89b35d9bf80cc  re2-2.23.0-aarch64-linux-musl.gem
7a06982957c780d56d3c46e1d283afb1c542a2100481e7921f7267eadb5eadcf  re2-2.23.0-arm-linux-gnu.gem
f5fffec3b29e9e64e4c1e8087992281fb09c64e5053512f6f747fedc18624b00  re2-2.23.0-arm-linux-musl.gem
c45864c4963bb5b1ba88387c6040f1af2c0dfd49a14099b3cfb22eab7222efce  re2-2.23.0-arm64-darwin.gem
8c968f9fca37b5a7d86a38c61f82dab42beede4e19c11e1887f78d69526b6d47  re2-2.23.0-x64-mingw-ucrt.gem
e7cb5114f63101c41871946ce17cf491033764406d5e40323ce71a32a5aedcc6  re2-2.23.0-x86_64-darwin.gem
6ea94be71293defa16298e16adefc72df8d158c915ac51d46e7c99c41515d9a2  re2-2.23.0-x86_64-linux-gnu.gem
1556e360e1fd5ac985f5da065f41e4621fdf4af0e23b33f8c1b0e0711565fc36  re2-2.23.0-x86_64-linux-musl.gem
5545b7709832c26ded88f1829fa9b24cdd7c5f0ebb0526c3c476b92505ef256f  re2-2.23.0.gem

2.22.0: Full RE2::Set#add error messages, allocation checks

Changed

• RE2::Set#add now includes the full error message from the underlying RE2 library if it fails rather than only the first 100 characters.
• Matching no longer allocates an RE2::MatchData object if there are no matches.
• Matching now better guards against integer overflows when specifying the number of matches.
• Be more defensive against allocations failing.

---

SHA256 checksums:

92cb19f496d75a07a1b2818e342b8e6102ae6f4e8b9660de778e92b8b9eacc8a  re2-2.22.0-aarch64-linux-gnu.gem
5300a514264a59b5c7a02d14a8177188fa72e33125fa4d756c852366e4ebe455  re2-2.22.0-aarch64-linux-musl.gem
e6695feccc5535b32924def2f5ea4154a8a6db9d6ecd9808d9db2f3401469b3c  re2-2.22.0-arm-linux-gnu.gem
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7a30d38d5168887e57a7770a33345f31efe598e27151a380e6c0f48d051989a3  re2-2.22.0-arm64-darwin.gem
d32a5e01fac7810e7318d89fee8366bc200a8e9925442d3476dabebdb25f6444  re2-2.22.0-x64-mingw-ucrt.gem
3ac67b80cf6b3f5d8871070e6acbddf10ee7e58f9200205752018b82db942bed  re2-2.22.0-x86_64-darwin.gem
83826babe28f3b216dc8062a9991c98d285a508848647466d1d1d90590cdae40  re2-2.22.0-x86_64-linux-gnu.gem
591efeaf91c984d592270c3b743809133aee4381b0f2c44e9b4718b5e8a9d2f4  re2-2.22.0-x86_64-linux-musl.gem
ccaf4ce62ea2521d5fb900a74e7e35a70db464ef0c20a63fdeac9235af34dc24  re2-2.22.0.gem

2.19.1: backported GC compaction fixes and frozen Scanner strings

Changed

• Backport GC compaction fixes and string freezing inside RE2::Scanner from 2.21.0 for users of Ruby older than 3.1.

---

SHA256 checksums:

3a92a6f02a26d12a939a130095e64eb1e5512cd57a9ecd919eef9e636c95fda4  re2-2.19.1-aarch64-linux-gnu.gem
adcc7a18ccdc369c4e247f2234a40a8d37e3e0ece3b3ef72a054bd2e1024e6bd  re2-2.19.1-aarch64-linux-musl.gem
21b00668cb1d29c835114c4399c7484c244e66e7620a8b3916bdab5a7f1663d1  re2-2.19.1-arm-linux-gnu.gem
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e2983353b8aa6aae7aad31b5706cef3d7832c718fdcc0a69502d1975aa2e4eaf  re2-2.19.1-arm64-darwin.gem
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870d497d92c9e8b10a3fb444c66dc5427c8815c04735cccfd69df68c2e0b52a6  re2-2.19.1-x64-mingw32.gem
4e321bc97becbe3d09a93e0d7cfbf83faebc95e10628748faa421a4480a18517  re2-2.19.1-x86_64-darwin.gem
8107999284ba2110364966385812f4e73d6662f12f33dbfda56cd8ede9d4b713  re2-2.19.1-x86_64-linux-gnu.gem
47fd8081cad3b517b5df0dc32d6499c720a50c62dc57164155ffec0736fb87bb  re2-2.19.1-x86_64-linux-musl.gem
4e24e9c0b1fd3fe62fc5b2c999b579a885a38487fcccb74cdda66cfe2ec2cdc6  re2-2.19.1-x86-linux-gnu.gem
bd87749ce4493e811f8628d6a6bff48e7c03a1bdbb391ad95106c31ff4c2c1c4  re2-2.19.1-x86-linux-musl.gem
60206d587fa4a3868d5598fbac87a57bd408510bfcf3456f3ea00b69ad4584d5  re2-2.19.1-x86-mingw32.gem
a1f45e3d10313415b82460e0ba37568a0aa23316801bdee0170371f067a30169  re2-2.19.1.gem

2.21.0: RE2 2025-11-05, GC compaction fixes, and frozen Scanner strings

Fixed

• Fixed bugs in RE2::Scanner and RE2::MatchData after Ruby's GC compaction where references to string data would no longer be valid. Thanks to @byroot and @konieczkow

Changed

• Strings given to RE2::Regexp#scan are now frozen (if they aren't already) so that mutating a string after creating an RE2::Scanner does not affect its matches.
• Upgrade the bundled version of RE2 to 2025-11-05.

---

SHA256 checksums:

202037703907b4b53c6ea7a7f40134da6c6ba64c92643fb4936fab8abad384f1  re2-2.21.0-aarch64-linux-gnu.gem
0d2e088fdb3bbff66b7b250ecad860373ea076f04d6ce68f2f7da715714c20d8  re2-2.21.0-aarch64-linux-musl.gem
4e93bdf16089e13f3bf874eaadd7bd14c5adabb0c6b2c6e5899925a17c1a7454  re2-2.21.0-arm-linux-gnu.gem
88505075d4ee0d071e5443f1a447c670edcea044f5bc9c9c7be06487ff36ae5d  re2-2.21.0-arm-linux-musl.gem
65d9b8c8a8fbe302f7f73a8b6b729903cbef4afa99add4ed165096368ca96967  re2-2.21.0-arm64-darwin.gem
b248fbc79eb188b25358a9389d10e3723b6a741b0312131d36f0b4a9f4b0118c  re2-2.21.0-x64-mingw-ucrt.gem
008ee2fd5f1217ced7474a9d95b52f372602481f5351e2492fba54c065fc0911  re2-2.21.0-x86_64-darwin.gem
c53db808713cc274e8d8c94a4eba166c6ce403e28d5131a858ccc77c34374d22  re2-2.21.0-x86_64-linux-gnu.gem
11c83d75004d1efa7d74138ca5f3ea4bd6db041fcd3b392a953c67f494821558  re2-2.21.0-x86_64-linux-musl.gem
af932942c7324107b1a85ca86396c4e27936d1aae030fbf8813ad19c595706e1  re2-2.21.0.gem

2.20.0: RE2 2025-08-12 and Abseil 20250814.1

Removed

• Compilation on macOS now targets macOS 10.14 so older versions of macOS are no longer supported.
• Remove support and native gems for Ruby 2.6, 2.7, and 3.0 (as it accounts for less than 1% of downloads in the past 60 days).
• Remove native gems for 32-bit platforms, specifically x86-linux-gnu, x86-linux-musl, and x86-mingw32.

Changed

• Upgrade the bundled version of Abseil to 20250814.1. Note this now requires a C++17 compiler.
• Upgrade the bundled version of RE2 to 2025-08-12. Note this now requires a C++17 compiler.

---

SHA256 checksums:

b34d7836a9524b1c1c99efe3aab9147f54f3134a21c13965ed83368428bfacf3  re2-2.20.0-aarch64-linux-gnu.gem
24e6788675b7700538fecaea5fb0e238c6dbd001d4780458038d502bd118f918  re2-2.20.0-aarch64-linux-musl.gem
497723f4f4c1598597b48e6aa6dcc8f24f59f272a745877952adb2181f653233  re2-2.20.0-arm-linux-gnu.gem
313e5e485b8372a875f146f54162d0a39eec020fb8fc02218a756238a465021b  re2-2.20.0-arm-linux-musl.gem
9c525f923a2cbab778dec36a6f6c08d571b1ee5e53dd0c0a016ea26e2bf3d19c  re2-2.20.0-arm64-darwin.gem
c38824acc1dcacc63032b9ed2bc520618a2d39e2a4672c09af1f095a8911f29f  re2-2.20.0-x64-mingw-ucrt.gem
03339a7bb99a2f822dd07343117a29e665e234ee5d8273035608fe1b6dc566ad  re2-2.20.0-x86_64-darwin.gem
d9d55b50d8aacd54dc786d85ff2d47870fb3349d2627c5be3ed5cf46e56b6c90  re2-2.20.0-x86_64-linux-gnu.gem
4fdcc541da8c6f5ebc8ebb4572d59d839d4255b0afd02424d69b4ba784531490  re2-2.20.0-x86_64-linux-musl.gem
45356b68a7a530cbeef1a98222c673268446b6b005e94ba485583b778881f3c2  re2-2.20.0.gem

2.19.0: RE2 2025-08-05

Changed

• Upgrade the bundled version of RE2 to 2025-08-05. Note this now requires CMake 3.22 or newer when compiling yourself.

---

SHA256 checksums:

0d2a4bc61a72e6c8a9d5ef4fa737ff81e31babd3f2eed935a4968ed2de5d85fc  re2-2.19.0-aarch64-linux-gnu.gem
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55a3beea0946bbc48f804a1347bf9f7f583f364adf864cf69282e6c2d40984dc  re2-2.19.0-x64-mingw32.gem
c6ad0ee36001f158a4c007c446a09ba955509ed2e90cfa1a4fc52b3418402ce9  re2-2.19.0-x86_64-darwin.gem
fa949b498e65348a9cb94eedcff8cff52804d703159f0106ebf1ea13f02b55f0  re2-2.19.0-x86_64-linux-gnu.gem
ca108f0d4474f9885ccdb653c38e7fd0b8ded24ba6d6416aaea07fc5939da36f  re2-2.19.0-x86_64-linux-musl.gem
c50b6752223f522c56a581bfb0cbc3e65f994123c09ee1fb0c99f51e35b38fe0  re2-2.19.0-x86-linux-gnu.gem
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676b956a65d88abac2ff7010b48e38b3a1a8dce99a995eadf35609e7bc076ee7  re2-2.19.0.gem

2.18.0: RE2 2025-07-22

Changed

• Upgrade the bundled version of RE2 to 2025-07-22.

---

SHA256 checksums:

6dd7ec202a31a2c5d1d0f59f2d86823aae61e57e569da6c3a911aea639e97b0c  re2-2.18.0-aarch64-linux-gnu.gem
15478cf5663bd268c63983dc281971a91d89d84641dc00ef308121444dad90d0  re2-2.18.0-aarch64-linux-musl.gem
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953063f0491420163d3484ed256fe2ff616c777ec66ee20aa5ec1a1a1fc39ff5  re2-2.18.0-arm64-darwin.gem
4a8a57cda9a87307bfa58fdc6f782dabc2e0ced1c1124ecf77ebfe19e61d12d7  re2-2.18.0-x64-mingw-ucrt.gem
e19090858945ae4b82649898a284d8964c62be0011cc75d30fd338259c51ff05  re2-2.18.0-x64-mingw32.gem
e8988e8624f9fbfa60f62418c84ba83c3efc04c74427788c756cda126dbe448f  re2-2.18.0-x86_64-darwin.gem
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2a0bdb9797fdf0f293ee05d96b847a29e9e843d6b44ae1ee9ef2251790fc3d8d  re2-2.18.0-x86-linux-gnu.gem
2bc230f2c01498da51e2b0fba9a6c196c9a6537aed318c4719cc914d14143211  re2-2.18.0-x86-linux-musl.gem
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600c134d7b184c26d8a1fea9101403e03244981115b1789ccdc4bdcc2db19624  re2-2.18.0.gem

2.17.0: RE2 2025-07-17

Changed

• Upgrade the bundled version of RE2 to 2025-07-17.

---

SHA256 checksums:

3bf2ee1723c66c9bb1941a8442c93dba0e73d6c68325d6240978108a1b2402fd  re2-2.17.0-aarch64-linux-gnu.gem
aa41e285e27733bab2bbf36749f6c000ad7a695450fd77c86591117b0659c34a  re2-2.17.0-aarch64-linux-musl.gem
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8db1ceb25ebb20b101d9176cd88f928b9c081d72d21e49690dd19aa04796523b  re2-2.17.0-arm-linux-musl.gem
77b44893953a95b7804d83a5d7fd88ac1a7dc49b4e559eb46f69027e93f14cd1  re2-2.17.0-arm64-darwin.gem
d9babb9bfc4350cd8b4b7908e33e9811d87ebc4b9eeb8becefd25b95a1b94a0a  re2-2.17.0-x64-mingw-ucrt.gem
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0072b9808eb8cd2ef29613ea5dcf0dcb61f64bef48abf889bd7231d44f4c447e  re2-2.17.0-x86_64-darwin.gem
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77eedb366a14edb2b6ff7b6ba88f1edcf44691576bcf121e3f25ea938ca0b03c  re2-2.17.0.gem

2.16.0: RE2 2025-06-26b and Abseil 20250127.1

Changed

• Upgrade the bundled version of RE2 to 2025-06-26b.
• Upgrade the bundled version of Abseil to 20250127.1.

Added

• Added RE2::Set#size to return the number of patterns in a set.

---

SHA256 checksums:

23c188ade583de58024740d0af22738ddfc98de6c43c95526a7abbf3cda0971b  re2-2.16.0-aarch64-linux-gnu.gem
006d6265ebba823f8995abcea17a98a8b4a4ba3d8dc44e4a7fb416edfe0ae91c  re2-2.16.0-aarch64-linux-musl.gem
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308b5142553f1bd0b98ef4c771129172c9edcc4027888e29426018aa41ef8c6f  re2-2.16.0-arm-linux-musl.gem
db82b93ef56ee0fde12af3f91038b611ecde42517c7ff8fdae44cc35f8376613  re2-2.16.0-arm64-darwin.gem
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51df219eb6bffaef18c07db42b965dbcb9503fab48956271d7a237bc5067d35c  re2-2.16.0.gem

2.15.0: Ruby 3.4 support and dedicated Musl gems

Added

• Add support for Ruby 3.4 in precompiled, native gems.
• Restored support for Ruby 2.6, 2.7, and 3.0 after dropping them in 2.15.0.rc1.

Changed

• Provide separate precompiled, native gems for GNU and Musl.
• Require glibc 2.29+ for x86-linux-gnu and x86_64-linux-gnu (and recommend RubyGems 3.3.22+ and Bundler 2.3.21+).

---

SHA256 checksums:

ed3fe87adbc637373268d2a1b69f07def5079535dd961db735fdfac8fa63520f  re2-2.15.0-aarch64-linux-gnu.gem
edf696d3a4587f580828e99cf36b7e04a86e0ebe103f704955b310a3f61e69de  re2-2.15.0-aarch64-linux-musl.gem
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