diff --git a/pkgs/applications/office/libreoffice/default.nix b/pkgs/applications/office/libreoffice/default.nix
index 8b063ad6c70e..d5d48219beb7 100644
--- a/pkgs/applications/office/libreoffice/default.nix
+++ b/pkgs/applications/office/libreoffice/default.nix
@@ -200,9 +200,8 @@ let
       }) // {
         inherit (x) md5name md5;
       }) srcsAttributes.deps;
-  } // optionalAttrs (variant != "collabora") {
-    translations = fetchurl srcsAttributes.translations;
-    help = fetchurl srcsAttributes.help;
+    translations = srcsAttributes.translations { inherit fetchurl fetchgit; };
+    help = srcsAttributes.help { inherit fetchurl fetchgit; };
   };
 
   qtMajor = lib.versions.major qtbase.version;
@@ -235,14 +234,17 @@ in stdenv.mkDerivation (finalAttrs: {
       ln -sfv ${f} $sourceRoot/${tarballPath}/${f.md5name}
       ln -sfv ${f} $sourceRoot/${tarballPath}/${f.name}
     '')}
-  '' + optionalString (variant != "collabora") ''
 
+  '' + (if (variant != "collabora") then ''
     ln -sv ${srcs.help} $sourceRoot/${tarballPath}/${srcs.help.name}
     ln -svf ${srcs.translations} $sourceRoot/${tarballPath}/${srcs.translations.name}
 
     tar -xf ${srcs.help}
     tar -xf ${srcs.translations}
-  '';
+  '' else ''
+    cp -r --no-preserve=mode ${srcs.help}/. $sourceRoot/helpcontent2/
+    cp -r --no-preserve=mode ${srcs.translations}/. $sourceRoot/translations/
+  '');
 
   patches = [
     # Skip some broken tests:
diff --git a/pkgs/applications/office/libreoffice/src-collabora/help.nix b/pkgs/applications/office/libreoffice/src-collabora/help.nix
new file mode 100644
index 000000000000..fc5d4a3fa2a0
--- /dev/null
+++ b/pkgs/applications/office/libreoffice/src-collabora/help.nix
@@ -0,0 +1,6 @@
+{ fetchgit, ... }:
+fetchgit {
+  url = "https://gerrit.libreoffice.org/help";
+  rev = "27f62cdb52fe23f6090a3249fcd1433777b2598d";
+  hash = "sha256-lyBuj7FI1jwVLLBkB6JJcmQVtm1FKExYWvRUoGqRbJ0=";
+}
diff --git a/pkgs/applications/office/libreoffice/src-collabora/main.nix b/pkgs/applications/office/libreoffice/src-collabora/main.nix
index 7e4bf5f4fdd0..ef4d5d77bfc1 100644
--- a/pkgs/applications/office/libreoffice/src-collabora/main.nix
+++ b/pkgs/applications/office/libreoffice/src-collabora/main.nix
@@ -2,6 +2,6 @@
 fetchgit {
   url = "https://gerrit.libreoffice.org/core";
   rev = "refs/tags/cp-24.04.5-4";
-  hash = "sha256-27uLK1u8XWNigxZUCUu8nNZP3p5eFUsS2gCcfSYJK2k=";
-  fetchSubmodules = true;
+  hash = "sha256-OJ3R8qs8/R8QnXGCRgn/ZJK7Nn8cWwYbZxjEWg0VpBc=";
+  fetchSubmodules = false;
 }
diff --git a/pkgs/applications/office/libreoffice/src-collabora/translations.nix b/pkgs/applications/office/libreoffice/src-collabora/translations.nix
new file mode 100644
index 000000000000..06f5fe5a3624
--- /dev/null
+++ b/pkgs/applications/office/libreoffice/src-collabora/translations.nix
@@ -0,0 +1,6 @@
+{ fetchgit, ... }:
+fetchgit {
+  url = "https://gerrit.libreoffice.org/translations";
+  rev = "5fd34a953e6861cb8e392363c0a3500059ed6b01";
+  hash = "sha256-1j0kTvPbytsCWszXz+xFE+n53zPkR8gNgVaawn+rjfI=";
+}
diff --git a/pkgs/applications/office/libreoffice/src-fresh/help.nix b/pkgs/applications/office/libreoffice/src-fresh/help.nix
index 164121f06165..0f9f54905270 100644
--- a/pkgs/applications/office/libreoffice/src-fresh/help.nix
+++ b/pkgs/applications/office/libreoffice/src-fresh/help.nix
@@ -1,4 +1,5 @@
-{
+{ fetchurl, ... }:
+fetchurl {
   sha256 = "090pi8dnj5izpvng94hgmjid14n7xvy3rlqqvang3pqdn35xnpsl";
   url = "https://download.documentfoundation.org/libreoffice/src/24.2.5/libreoffice-help-24.2.5.2.tar.xz";
 }
diff --git a/pkgs/applications/office/libreoffice/src-fresh/translations.nix b/pkgs/applications/office/libreoffice/src-fresh/translations.nix
index 82291fab8326..b96943060182 100644
--- a/pkgs/applications/office/libreoffice/src-fresh/translations.nix
+++ b/pkgs/applications/office/libreoffice/src-fresh/translations.nix
@@ -1,4 +1,5 @@
-{
+{ fetchurl, ... }:
+fetchurl {
   sha256 = "0fri41y59zhm8lq0kh6hvf5rpdjdqx0lg1sl40mhh1d6lf1izc1w";
   url = "https://download.documentfoundation.org/libreoffice/src/24.2.5/libreoffice-translations-24.2.5.2.tar.xz";
 }
diff --git a/pkgs/applications/office/libreoffice/src-still/help.nix b/pkgs/applications/office/libreoffice/src-still/help.nix
index f9e71ea79936..8bdc4617e148 100644
--- a/pkgs/applications/office/libreoffice/src-still/help.nix
+++ b/pkgs/applications/office/libreoffice/src-still/help.nix
@@ -1,4 +1,5 @@
-{
+{ fetchurl, ... }:
+fetchurl {
   sha256 = "1l543k603mbr3rnwlnv9j52mblmvkgj9y49w4v7w3xm8b15331rs";
   url = "https://download.documentfoundation.org/libreoffice/src/7.6.7/libreoffice-help-7.6.7.2.tar.xz";
 }
diff --git a/pkgs/applications/office/libreoffice/src-still/translations.nix b/pkgs/applications/office/libreoffice/src-still/translations.nix
index 9604ad622e21..fffb89108f09 100644
--- a/pkgs/applications/office/libreoffice/src-still/translations.nix
+++ b/pkgs/applications/office/libreoffice/src-still/translations.nix
@@ -1,4 +1,5 @@
-{
+{ fetchurl, ... }:
+fetchurl {
   sha256 = "1bzmpa04bv8afhl3p68dlicamh0zyckmbdgqb3v72fjmx2h8i64a";
   url = "https://download.documentfoundation.org/libreoffice/src/7.6.7/libreoffice-translations-7.6.7.2.tar.xz";
 }
diff --git a/pkgs/applications/office/libreoffice/update.sh b/pkgs/applications/office/libreoffice/update.sh
index 6f9612dd7090..9f7a580ad56e 100755
--- a/pkgs/applications/office/libreoffice/update.sh
+++ b/pkgs/applications/office/libreoffice/update.sh
@@ -47,7 +47,8 @@ case $variant in
     echo \"$full_version\" > version.nix
 
     for t in help translations; do
-        echo "{" > $t.nix
+        echo "{ fetchurl, ... }:" > $t.nix
+        echo "fetchurl {" >> $t.nix
         echo "  sha256 = "\"$(nix-prefetch-url $baseurl/libreoffice-$t-$full_version.tar.xz)'";' >> $t.nix
         echo "  url = "\"$baseurl/libreoffice-$t-$full_version.tar.xz'";' >> $t.nix
         echo "}" >> $t.nix
@@ -56,7 +57,7 @@ case $variant in
     # Out of loop nix-prefetch-url, because there is no $t, and we want the output
     # path as well, to get the download.lst file from there afterwards.
     main_path_hash=($(nix-prefetch-url --print-path $baseurl/libreoffice-$full_version.tar.xz))
-    echo "{ fetchurl, ...}:" > main.nix
+    echo "{ fetchurl, ... }:" > main.nix
     echo "fetchurl {" >> main.nix
     echo "  sha256 = "\"${main_path_hash[0]}'";' >> main.nix
     echo "  url = "\"$baseurl/libreoffice-$full_version.tar.xz'";' >> main.nix
@@ -78,27 +79,41 @@ case $variant in
     ;;
 
 (collabora)
-    full_version=$(git ls-remote --tags --sort -v:refname https://gerrit.libreoffice.org/core | grep -Pom1 'refs/tags/cp-\K\d+\.\d+\.\d+-\d+$')
+    all_tags=$(git ls-remote --tags --sort -v:refname https://gerrit.libreoffice.org/core)
+    rev=$(grep --perl-regexp --only-matching --max-count=1 \
+        '\Krefs/tags/cp-\d+\.\d+\.\d+-\d+$' <<< "$all_tags")
+    full_version=${rev#refs/tags/cp-}
     echoerr full version is $full_version
     echo \"$full_version\" > version.nix
 
-    rev="refs/tags/cp-$full_version"
+    # The full checkout including the submodules is too big for Hydra, so we fetch
+    # submodules separately.
+    declare -A dirnames=([help]=helpcontent2 [translations]=translations)
+    for t in help translations; do
+        sub_rev=$(curl --silent "https://git.libreoffice.org/core/+/$rev/${dirnames[$t]}" |\
+            pup '.gitlink-detail text{}' |\
+            sed -n 's/^Submodule link to \([0-9a-f]\{40\}\) of .*/\1/p')
+        echoerr got rev $sub_rev for $t
+        prefetch_output=$(nix-prefetch-git "https://gerrit.libreoffice.org/$t" --rev "$sub_rev")
+        echo "{ fetchgit, ... }:" > $t.nix
+        echo "fetchgit {" >> $t.nix
+        echo "  url = \"$(jq -r '.url' <<< "$prefetch_output")\";" >> $t.nix
+        echo "  rev = \"$rev\";" >> $t.nix
+        echo "  hash = \"$(jq -r '.hash' <<< "$prefetch_output")\";" >> $t.nix
+        echo "}"
+    done
 
-    prefetch_output=$(nix-prefetch-git https://gerrit.libreoffice.org/core --rev "$rev" --fetch-submodules)
-    fetched_git_path=$(echo "$prefetch_output" | jq -r '.path')
-    hash=$(echo "$prefetch_output" | jq -r '.hash')
-
-    # Generate main.nix
+    local prefetch_output=$(nix-prefetch-git "https://gerrit.libreoffice.org/core" --rev "$rev")
     echo "{ fetchgit, ... }:" > main.nix
     echo "fetchgit {" >> main.nix
-    echo "  url = \"https://gerrit.libreoffice.org/core\";" >> main.nix
+    echo "  url = \"$(jq -r '.url' <<< "$prefetch_output")\";" >> main.nix
     echo "  rev = \"$rev\";" >> main.nix
-    echo "  hash = \"$hash\";" >> main.nix
-    echo "  fetchSubmodules = true;" >> main.nix
+    echo "  hash = \"$(jq -r '.hash' <<< "$prefetch_output")\";" >> main.nix
+    echo "  fetchSubmodules = false;" >> main.nix
     echo "}" >> main.nix
 
     # Environment variable required by ../generate-libreoffice-srcs.py
-    export downloadList="$fetched_git_path/download.lst"
+    export downloadList=$(jq -r '.path' <<< "$prefetch_output")/download.lst
 esac
 
 cd ..
diff --git a/pkgs/development/python-modules/pysrt/default.nix b/pkgs/development/python-modules/pysrt/default.nix
index d94e1fec3a74..9be5028a8787 100644
--- a/pkgs/development/python-modules/pysrt/default.nix
+++ b/pkgs/development/python-modules/pysrt/default.nix
@@ -2,14 +2,16 @@
   lib,
   buildPythonPackage,
   fetchFromGitHub,
+  setuptools,
   chardet,
-  nose,
+  pytestCheckHook,
+  fetchpatch2,
 }:
 
 buildPythonPackage rec {
   pname = "pysrt";
   version = "1.1.2";
-  format = "setuptools";
+  pyproject = true;
 
   src = fetchFromGitHub {
     owner = "byroot";
@@ -18,16 +20,22 @@ buildPythonPackage rec {
     sha256 = "1f5hxyzlh5mdvvi52qapys9qcinffr6ghgivb6k4jxa92cbs3mfg";
   };
 
-  nativeCheckInputs = [ nose ];
-  checkPhase = ''
-    nosetests -v
-  '';
+  patches = [
+    (fetchpatch2 {
+      url = "https://github.com/byroot/pysrt/commit/93f52f6d4f70f4e18dc71deeaae0ec1e9100a50f.patch?full_index=1";
+      hash = "sha256-nikMPwj3OHvl6LunAfRk6ZbFUvVgPwF696Dt8R7BY4U=";
+    })
+  ];
+
+  build-system = [ setuptools ];
 
   propagatedBuildInputs = [ chardet ];
 
+  nativeCheckInputs = [ pytestCheckHook ];
+
   meta = with lib; {
     homepage = "https://github.com/byroot/pysrt";
-    license = licenses.gpl3;
+    license = licenses.gpl3Only;
     description = "Python library used to edit or create SubRip files";
     mainProgram = "srt";
   };
diff --git a/pkgs/games/osu-lazer/bin.nix b/pkgs/games/osu-lazer/bin.nix
index 42ba68c851ed..016705ec962a 100644
--- a/pkgs/games/osu-lazer/bin.nix
+++ b/pkgs/games/osu-lazer/bin.nix
@@ -7,22 +7,22 @@
 
 let
   pname = "osu-lazer-bin";
-  version = "2024.726.0";
+  version = "2024.727.0";
 
   src = {
     aarch64-darwin = fetchzip {
       url = "https://github.com/ppy/osu/releases/download/${version}/osu.app.Apple.Silicon.zip";
-      hash = "sha256-XsgKTBXfGFxbWyBdr/1BNP58p6VwMiTo3gblSkrilbY=";
+      hash = "sha256-yoNtCfL0wrwAUrwYTZLDsR7udUa82Jh1CIcgVQ8TBX4=";
       stripRoot = false;
     };
     x86_64-darwin = fetchzip {
       url = "https://github.com/ppy/osu/releases/download/${version}/osu.app.Intel.zip";
-      hash = "sha256-eeLrbaS/IiwLaRymwpQrHVDirCWcUBmVLHxA/K4V2SM=";
+      hash = "sha256-rdRGwD9tDxZFR8Qbd1bVG/YsbuMGZAj0roA9vRO+wQE=";
       stripRoot = false;
     };
     x86_64-linux = fetchurl {
       url = "https://github.com/ppy/osu/releases/download/${version}/osu.AppImage";
-      hash = "sha256-GhX0qSicoRbmHvtyAB37AGr2dWh4OCDJApi9RcUVzwY=";
+      hash = "sha256-wRahb7XvhdfP42iwyVsDGR8gFdsK9G8vDANS6Q3RySM=";
     };
   }.${stdenv.system} or (throw "${pname}-${version}: ${stdenv.system} is unsupported.");
 
diff --git a/pkgs/games/osu-lazer/default.nix b/pkgs/games/osu-lazer/default.nix
index 392836f9cfa8..831cb35bea64 100644
--- a/pkgs/games/osu-lazer/default.nix
+++ b/pkgs/games/osu-lazer/default.nix
@@ -17,13 +17,13 @@
 
 buildDotnetModule rec {
   pname = "osu-lazer";
-  version = "2024.726.0";
+  version = "2024.727.0";
 
   src = fetchFromGitHub {
     owner = "ppy";
     repo = "osu";
     rev = version;
-    hash = "sha256-SakrmL8Cx+r2C1cNV0ZARwsdC2D8saO1TibDJbAyzxI=";
+    hash = "sha256-pw1UkP3VktQ2xFTBOcFAOGQuAOF+uGiU7rZsxKBQ10w=";
   };
 
   projectFile = "osu.Desktop/osu.Desktop.csproj";
diff --git a/pkgs/os-specific/linux/kernel/kernels-org.json b/pkgs/os-specific/linux/kernel/kernels-org.json
index bc585f07c021..3506d0937af8 100644
--- a/pkgs/os-specific/linux/kernel/kernels-org.json
+++ b/pkgs/os-specific/linux/kernel/kernels-org.json
@@ -4,39 +4,39 @@
         "hash": "sha256:0i29ga9lzqd4zcsbr4bbb122i8nyfhcalihnq3bgsg04dwb36s19"
     },
     "6.1": {
-        "version": "6.1.101",
-        "hash": "sha256:0k5kjb2n78dcfpqqj8n76fxqbmifs2gqd2z1g9had7s2d2m9yigi"
+        "version": "6.1.102",
+        "hash": "sha256:1v4p4i8pfg4i6v90dr7m65npkxjnqv3fxcj8zs3pbb8y84xzk98v"
     },
     "5.15": {
-        "version": "5.15.163",
-        "hash": "sha256:00mkipkhz0i5xld7kyaxcj8cj8faw4gmjl5fribg832nn7ccfpq2"
+        "version": "5.15.164",
+        "hash": "sha256:11linb9jzarr8wz0vim3g9gkhi5ldqm82bkpl5xs9f34xpx9hq7c"
     },
     "5.10": {
-        "version": "5.10.222",
-        "hash": "sha256:1jshn64g165rdshyjvq38ni6pkbskp50048pbz407fss7f00cbbv"
+        "version": "5.10.223",
+        "hash": "sha256:189b3yl4lsjzh6qpza0phj8hgsvnyh38cgrd70rnqw3rddmdh2fa"
     },
     "5.4": {
-        "version": "5.4.280",
-        "hash": "sha256:0hix0dywf2ybvzxkijjsjmkrj7sx61hwq6mg1wqsq317p1zccxm9"
+        "version": "5.4.281",
+        "hash": "sha256:1ckja83km101h2dwlp86xrnnlzdzvjly48iywhy53xric3kw7824"
     },
     "4.19": {
-        "version": "4.19.318",
-        "hash": "sha256:14vl0288apl76rvxa9yxfggrc4600bjsn4gw097m4gy5ldiaapqd"
+        "version": "4.19.319",
+        "hash": "sha256:0c7bhb31hpbbw1is1ykppk9lm0x025yyd4hrmlg1s6yg75rxqkal"
     },
     "6.6": {
-        "version": "6.6.42",
-        "hash": "sha256:10z6fjvpiv3l11rpsd6fgi7dr6a3d38c6zlp8ihffx6pjz1ch0c8"
+        "version": "6.6.43",
+        "hash": "sha256:0pha226h5011kl5r2iiddxi0rib3xraslmcdjjnil2kq38d3pn0a"
     },
     "6.8": {
         "version": "6.8.12",
         "hash": "sha256:0fb0m0fv4521g63gq04d7lm6hy8169s1rykiav5bkd99s9b1kcqr"
     },
     "6.9": {
-        "version": "6.9.11",
-        "hash": "sha256:1q8kyn9cxc1ykf3cvifmfqk2p2p4x53l7h704hh92gichgh89pyy"
+        "version": "6.9.12",
+        "hash": "sha256:08ngskni7d9wi93vlwcmbdg7sb2jl1drhhzn62k9nsrg1r7crrss"
     },
     "6.10": {
-        "version": "6.10.1",
-        "hash": "sha256:0szpkhrwfqwj068vz032daf3zycv5c93gjxiisjziifi3kyrs43h"
+        "version": "6.10.2",
+        "hash": "sha256:0w4vsb0c8bp34j90l89qms50nx6r6mmyf23jbvyar9fbv46m5n3k"
     }
 }
diff --git a/pkgs/os-specific/linux/kernel/linux-rt-5.15.nix b/pkgs/os-specific/linux/kernel/linux-rt-5.15.nix
index 127d7e663513..070a5714ee83 100644
--- a/pkgs/os-specific/linux/kernel/linux-rt-5.15.nix
+++ b/pkgs/os-specific/linux/kernel/linux-rt-5.15.nix
@@ -6,7 +6,7 @@
 , ... } @ args:
 
 let
-  version = "5.15.160-rt77"; # updated by ./update-rt.sh
+  version = "5.15.163-rt78"; # updated by ./update-rt.sh
   branch = lib.versions.majorMinor version;
   kversion = builtins.elemAt (lib.splitString "-" version) 0;
 in buildLinux (args // {
@@ -19,14 +19,14 @@ in buildLinux (args // {
 
   src = fetchurl {
     url = "mirror://kernel/linux/kernel/v5.x/linux-${kversion}.tar.xz";
-    sha256 = "018v19a7rhzc4szybzzn86jlnk42x7jm6xkadfd2d3xq6f7727pl";
+    sha256 = "00mkipkhz0i5xld7kyaxcj8cj8faw4gmjl5fribg832nn7ccfpq2";
   };
 
   kernelPatches = let rt-patch = {
     name = "rt";
     patch = fetchurl {
       url = "mirror://kernel/linux/kernel/projects/rt/${branch}/older/patch-${version}.patch.xz";
-      sha256 = "0id4m1k1xq84bxgnchm8r2iwfqw6nacv5n1ksgyzj6q6v66ik3wk";
+      sha256 = "030aycnrcnjhylkqj0wrfi992v2l26v17rgvxl16514zpdjmiv1x";
     };
   }; in [ rt-patch ] ++ kernelPatches;
 
diff --git a/pkgs/os-specific/linux/kernel/update-mainline.py b/pkgs/os-specific/linux/kernel/update-mainline.py
index bf5001ee378a..79ac283faab6 100755
--- a/pkgs/os-specific/linux/kernel/update-mainline.py
+++ b/pkgs/os-specific/linux/kernel/update-mainline.py
@@ -1,5 +1,6 @@
 #!/usr/bin/env nix-shell
 #!nix-shell -i python3 -p "python3.withPackages (ps: [ ps.beautifulsoup4 ps.lxml ps.packaging ])"
+from itertools import groupby
 import json
 import os
 import pathlib
@@ -11,7 +12,7 @@ from enum import Enum
 
 from bs4 import BeautifulSoup, NavigableString, Tag
 from packaging.version import parse as parse_version, Version
-from typing import List
+
 
 HERE = pathlib.Path(__file__).parent
 ROOT = HERE.parent.parent.parent.parent
@@ -41,7 +42,7 @@ def parse_release(release: Tag) -> KernelRelease | None:
     except KeyError:
         return None
 
-    version = columns[1].get_text().rstrip(" [EOL]")
+    version = parse_version(columns[1].get_text().rstrip(" [EOL]"))
     date = columns[2].get_text()
     link = columns[3].find("a")
     if link is not None and isinstance(link, Tag):
@@ -59,13 +60,12 @@ def parse_release(release: Tag) -> KernelRelease | None:
     )
 
 
-def get_branch(version: str):
+def get_branch(version: Version):
     # This is a testing kernel.
-    if "rc" in version:
+    if version.is_prerelease:
         return "testing"
     else:
-        major, minor, *_ = version.split(".")
-        return f"{major}.{minor}"
+        return f"{version.major}.{version.minor}"
 
 
 def get_hash(kernel: KernelRelease):
@@ -113,11 +113,11 @@ def main():
 
     oldest_branch = get_oldest_branch()
 
-    for kernel in parsed_releases:
-        branch = get_branch(kernel.version)
+    for (branch, kernels) in groupby(parsed_releases, lambda kernel: get_branch(kernel.version)):
+        kernel = max(kernels, key=lambda kernel: kernel.version)
         nixpkgs_branch = branch.replace(".", "_")
 
-        old_version = all_kernels.get(branch, {}).get("version")
+        old_version = parse_version(all_kernels.get(branch, {}).get("version"))
         if old_version == kernel.version:
             print(f"linux_{nixpkgs_branch}: {kernel.version} is latest, skipping...")
             continue
@@ -144,7 +144,7 @@ def main():
         print(message, file=sys.stderr)
 
         all_kernels[branch] = {
-            "version": kernel.version,
+            "version": str(kernel.version),
             "hash": get_hash(kernel),
         }