diff --git a/sci-chemistry/gromacs/Manifest b/sci-chemistry/gromacs/Manifest
index b66082130db0..73f1bcf3e2c4 100644
--- a/sci-chemistry/gromacs/Manifest
+++ b/sci-chemistry/gromacs/Manifest
@@ -2,14 +2,14 @@ DIST gromacs-2023.5.tar.gz 42079310 BLAKE2B e50dbe76396230f4a886280bdebcf7b13150
 DIST gromacs-2024.6.tar.gz 42340289 BLAKE2B babba3ec83e8757d95733a51eebf780a2f0cf5da2fd3b2aa9410cdfca7901955cbd63d2ed0c61fde873b4438d85ae7769afa8f3d7ee1da26571d8989c516ecd4 SHA512 eb3d06df3e5c52d3dab801e5c2134fc05ded1bca8b1955f747e4efbb2b4cd1f50680f073592a5c5d580abff0a869ffd1c19c352bc6d9b4ab40465741ed7d001a
 DIST gromacs-2025.3.tar.gz 44407119 BLAKE2B 7e7385d5a83c02cb7152f789df6b86321b9ee22d7fb53e0e69fd01ba04ec197d1b725047f5c9983595ab124f23310f926e101d12a2113472f3b2aaa53f26b661 SHA512 8151bb0f72bf51d0368e40871b68d552c58ed69c0e431601afbf5c7923e7512d2458dfb22eb7fd79cc3c464434ca94a67c99a9f71c7e6b00d7d141789712c157
 DIST gromacs-2025.4.tar.gz 44406127 BLAKE2B 6a558e979574876bc0077e96733c0f7e267c39bff6afbf840ffc7ce0f2580ff0871136d43aa994f4bb44aa98ad4192cefac003d306c02b89aa026d46a47d2a84 SHA512 640bee4b499b06de7dc6a04c6448f174a0232afc2bc90a8e1a862842ea0cdc886eabe6d170d637ccfb9d8e979b74067ac0d52b760fd98c7d6dc47d32e5cd3733
-DIST gromacs-2026-beta.tar.gz 45617869 BLAKE2B 60cfee3bb818f9c0c528b5d65c9d05263755edb58a0c33fe5a48aca1e5b960cef3ae2fb11c2da18ecfc8610aaa1ca617fbf9000685aee93a4579bda90400b1a6 SHA512 ab6f68569231a0f5876381fda467b6bed670aedf633f479d78eef17d5a2e0f22db9602eefab66f3e192a192a312335ff16f192199e90ce5724576de389ae3f12
+DIST gromacs-2026-rc.tar.gz 45935427 BLAKE2B 921a4e6cd4cd502b1f87dd9c21c49ea29ad99f12c952f6cef8f9bfbd380a8344c01b59348fe0ddd9f5a96c0a8916d06de01ffc23e838edef036356d4a108d663 SHA512 9e45741f47021fd325e207ea2737224801e481607d1cf2ac6a43e44629ae4943a347eafd875697397d84a70ec11b7d8d03e27030e2a51a933b54cfa450e1f115
 DIST manual-2023.5.pdf 13579081 BLAKE2B 42f687ebcdb79bfc77aabac4fd382940c23ba27da380b8eff342c2e9255a58fc11a0458220d1f71f3c13ab1cf6fdabad00ac1bad741781d0b787899165bea2cc SHA512 0661f166f7a8dc24b4244c0139f366832ddfc1298129df2a6e29800b5d1567318781ab547bc7e9ee54de7a62abba4996f8e3010c91d6917c248117e5711d7dbb
 DIST manual-2024.6.pdf 13698340 BLAKE2B 7926fe0c09ab1a6027e6e5d2692e2a590ec31c061b0f3e0dd278ffc8bffe923d6342bd9f375758fe5b0ca9c7fd43a216e486c694ba8d644acceb6467aac37425 SHA512 9130bda473ddfc475f3c7a6946890189bf225609208fb9e84c81606a72d63383199ac5e05f3620e7d7f96916ee475e19528d03b4ddc4b339772af61825beec45
 DIST manual-2025.3.pdf 13822608 BLAKE2B 75ea8359a33941f1d44a6c471c03e268c707cdc4717ea43c455c25c5c60b7708e68849aba8fde7872aefa93691ef0bec531b7bd9cb0376b3ddee34c24058bdb5 SHA512 e0a3016eb6fc271d617795c1595a15e234c28a8492e2b0471b705c1f597b672ec05d0bb78ff3b977140c5f525dcc72c3b082cc74aee1e4207b9f1c2593a71bb5
 DIST manual-2025.4.pdf 13827071 BLAKE2B 8bc581f05fe80f1881efd7b3b5f87a34d153847fed92a4cb8b2d98666bd5b84ef46319f9f49f1c47b9940a5fa68b93d543fbf60318defc3884988a9942c1aeff SHA512 451360ba60f2c4fabe09851bdb1712a2273278f01b5b23b5afbf277b3822f8fed7eb64991a549fbac10878f366db15f12e3b93ae6285095fc30731761604f3fa
-DIST manual-2026-beta.pdf 13856429 BLAKE2B 672c5e555eca4b19582e6e1ec6bdb49c7b73ae61342b5cc77810a5d9d4dfe8a73d21606367d49b7d0dbed55a526187b34f5e7cfcda5820ab80c9312236e320b9 SHA512 130cc86caab4d1567bdc274a5619c4527aa2c1555ed74fb6863ac713104cad46fea41d5401a7e0e0fe12a3bf1fc08df35d3583ffab76c5ddf5fdbc38b3693700
+DIST manual-2026-rc.pdf 13885425 BLAKE2B 545fc0606d100054d3991e6c3c5d05ac86b8f6d7fe9f7d93f2969a6e78b6402d18d2b55857af4ba0384bb1e27978972096ec31d22eee118a9752395de7542911 SHA512 53530895492eb8d20e795c58df15b3d6bf58f03e965397702944b0c11cf0e6edf4976c5ec4038a61f1f0b464e82bc0c8ca395a62c23d1e08f05e70ecc4ec981b
 DIST regressiontests-2023.5.tar.gz 48619605 BLAKE2B f2549a34750c6866f054614a00a3360a09b82306e6bd5e5b848e18cdd3a3fabaac6203c5ca734901019403225dd47e0d662838abe9a1db7d07662f1c745b8e4f SHA512 3ccaf9db7dfba641a5e98ebff3d735cae3f679926aba443ffedec20dd6c85e67f0e9711ebad5dfa8105122d5411f5de6ded1802a7da4ddf0599657832c8c597a
 DIST regressiontests-2024.6.tar.gz 32776894 BLAKE2B 75dbf6a6ec5a1d0848a51335a1fb2e6777361d0b823e7f88c5145c881aa819abfc2eaaae1ae438538213c09659e9512bf77b4dc2f0ee63a28a1f213f49b5a47d SHA512 1150396a3c20b7747a4a58c22b26c0c40cf6e6f70b8daabfc71cbe00f2dce3ad1c02d89d264a7d7db3f3e7e9dd1c0b46a438d297cdeb074e50d8d6d3e916950b
 DIST regressiontests-2025.3.tar.gz 32653489 BLAKE2B 1396872d6ebe2756b02ca1a1d173edd29f4931d2b30280299723b24164e5576c14c59997c00d7919b262fb1a15083dc90541f9f7e48587090002fc7cca9e1332 SHA512 fb947dc148e21a69e1ef06258f6c2359156e4afb7c8bee9e659ea461f5e4e9fe3654bec86324e11fcd6624889490ec73cb213bf0111cf76ded966f43c1182a20
 DIST regressiontests-2025.4.tar.gz 32652577 BLAKE2B 7c4253499e94f5adeb17a17ebb93229b0a8dd0f6694af3b67a751d76e916d96bf461070b56774b331512cc351feb8889c6f843a386ac41e615f33af17d1baa2e SHA512 54c29741229a44e322b2e1445bb8d90ed4d790704d9b13fa392e78d6effa551f685e7c18e2c86ca613a85b34ebc3ddef512b406621d53471c6bbb0e1e8913ff0
-DIST regressiontests-2026-beta.tar.gz 16580940 BLAKE2B dbce022c5d43bacd897eb416393cf977f28b1fb731d4da35ae237cbf4a341cbbbe55c036eef59da7240d5758afd2d08c6ccef8f86d0078bad943a3eeb0a6a993 SHA512 f48e897b58706a479301fc8d6638dfaab161381da6099d5bdd8aec349a36aa56df32208b5dabf1279c0e475912975cf6fda66c6404a3910bc7f38db4b7dac933
+DIST regressiontests-2026-rc.tar.gz 16580876 BLAKE2B f8609cc227f2e56fe5055b42ff6bcaf8a51862b79756fc15990a0048e960e2dd1a82aec07c5a453835ac50e6189e5406995a8a2012969e51c34d8909f84ef9de SHA512 4a8501bc190612e2b5b6c44dc319e1e60b9cb5e9a92595efbedaab9744573a22d3906a08631f9900b120749e0c4dc615af4310f427bc070b6d97020a09b7ed36
diff --git a/sci-chemistry/gromacs/gromacs-2026_beta.ebuild b/sci-chemistry/gromacs/gromacs-2026_rc.ebuild
similarity index 100%
rename from sci-chemistry/gromacs/gromacs-2026_beta.ebuild
rename to sci-chemistry/gromacs/gromacs-2026_rc.ebuild