diff --git a/.gitignore b/.gitignore
index df75da3..c06af67 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
 /tree-sitter-*.tar.gz
+.side-tag
diff --git a/chain-build.sh b/chain-build.sh
new file mode 100755
index 0000000..2d6486a
--- /dev/null
+++ b/chain-build.sh
@@ -0,0 +1,274 @@
+#!/usr/bin/bash
+
+# Use a side tag to build libtree-sitter and everything that depends on
+# it.  Where we have no permission to do the build ourselves, raise a
+# pull request instead.
+#
+# Run in place of `fedpkg build`.  E.g.,
+#   fedpkg switch-branch rawhide
+#   ...
+#   fedpkg commit
+#   fedpkg push
+#   ./chain-build.sh <rhbz-number>
+
+# MIT License
+#
+# Copyright (c) 2025 Peter Oliver
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in all
+# copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+
+# TODO: Make this script idempotent, so that it can simply be re-run in
+# the event of failures.
+
+set -o errexit
+set -o nounset
+set -o pipefail
+
+function usage {
+    echo "usage: $BASH_ARGV0 [-P] [-d|-v] [bug-number]"
+    exit 2
+}
+
+no_pull_requests=
+quiet=-q
+while getopts 'dPv' OPT; do
+    case "$OPT" in
+    d)
+        set -o xtrace
+        quiet=
+        ;;
+    P)
+        no_pull_requests=1
+        ;;
+    v)
+        quiet=
+        ;;
+    *)
+        usage
+        ;;
+    esac
+done
+shift $((OPTIND - 1))
+
+if (( $# == 1 )); then
+    typeset -i bug=$1
+    shift;
+elif (( $# > 1 )); then
+    usage
+fi
+
+function create_authorization_header_file {
+    local type="$1"
+    local filename="${tmp_dir}/${type}_authorization"
+
+    local auth_type
+    case "$type" in
+    bugzilla)
+        auth_type=Bearer
+        ;;
+    distgit)
+        auth_type=token
+        ;;
+    esac
+
+    if [[ ! -f "$filename" ]]; then
+        (
+            umask u=rwx,g=,o=
+            printf 'Authorization: %s ' "$auth_type" > "$filename"
+            if ! crudini --get ~/.config/rpkg/fedpkg.conf "fedpkg.$type" token \
+                 >> "$filename"
+            then
+                case "$type" in
+                bugzilla)
+                    echo "You can get a token from https://bugzilla.redhat.com/userprefs.cgi?tab=apikey and store it with:
+    ( umask u=rwx,g=,o= && crudini --set ~/.config/rpkg/fedpkg.conf fedpkg.bugzilla token ... )"
+                ;;
+                distgit)
+                    echo "You can get a token from https://pagure.io/settings/token/new and store it with:
+    fedpkg set-pagure-token"
+                ;;
+                esac
+                return 2;
+            fi
+        )
+    fi
+}
+
+# Fail ASAP if unauthenticated:
+koji moshimoshi > /dev/null
+
+# Install potential dependencies:
+if [[ ! -x /usr/bin/crudini \
+          || ! -x /usr/bin/jq ]]; then
+    sudo dnf $quiet install -y /usr/bin/crudini /usr/bin/jq
+fi
+
+branch="$(git branch --show-current)"
+
+# Get a list of packages that require libtree-sitter:
+packages=($(
+    dnf $quiet repoquery \
+        --repo=fedora --repo=updates \
+        --releasever="${branch#f}" \
+        --whatrequires='libtree-sitter.so.*' \
+        --qf='%{source_name}\n' \
+        | grep -v '^tree-sitter$'
+))
+
+# Create a new side tag (or re-use the existing one, if this script
+# failed last time it was run):
+if [[ -f .side-tag ]]; then
+    side_tag="$(cat .side-tag)"
+
+    if fedpkg list-side-tags | grep --quiet --perl-regexp "^$side_tag\s"; then
+        echo "Re-using side tag $side_tag"
+    else
+        echo "Side tag $side_tag no-longer exists.  Will create a new one"
+        side_tag=''
+    fi
+fi
+if [[ -z ${side_tag:-} ]]; then
+    side_tag="$(
+        fedpkg request-side-tag \
+               | grep --perl-regexp --only-matching "(?<=^Side tag ').*(?=')"
+    )"
+    echo "$side_tag" > .side-tag
+    koji $quiet wait-repo --no-request "$side_tag"
+fi
+
+# Build tree-sitter in the side tag:
+verrel="$(fedpkg verrel)"
+fedpkg $quiet build --target="$side_tag"
+koji $quiet wait-repo --request --build="$verrel" "$side_tag"
+
+# Try to bump and rebuild the requiring packages:
+message="Rebuild against $verrel"
+tmp_dir="$(mktemp -td tree-sitter-chain-build.XXXXXX)"
+declare -i i=0
+for package in "${packages[@]}"; do
+    fedpkg $quiet clone --branch="$branch" --depth=1 "$package" \
+           "$tmp_dir/$package"
+    cd "$tmp_dir/$package"
+
+    rpmdev-bumpspec --comment="$message" "$package.spec" >/dev/null
+    git add "$package.spec"
+    git commit --allow-empty --message="$message"
+
+    if fedpkg $quiet push; then
+        # Build the requiring package in the side tag:
+        fedpkg $quiet build --target="$side_tag" --nowait
+    elif [[ -n $no_pull_requests ]]; then
+        echo "Skipping $package, which would require a pull request"
+        skipped_packages+=("$package")
+        unset packages[$i]
+    else
+        # We lack permission for the requiring package, so submit a pull
+        # request instead.
+
+        fedpkg $quiet fork
+        git fetch $quiet --unshallow
+
+        fas_login="$(
+            git remote -v \
+                | grep --perl-regexp --only-matching \
+                       '^(\w+)(?=\s+ssh://(\1)@pkgs\.fedoraproject\.org/forks/\1/rpms/.+ \(push\)$)'
+        )"
+
+        git switch $quiet --create "$verrel"
+        git push $quiet "$fas_login" "$verrel"
+
+        create_authorization_header_file distgit
+
+        response=$(
+            curl \
+                ${quiet:+--silent --show-error} \
+                --fail-with-body \
+                --header @"$tmp_dir/distgit_authorization" \
+                --data title="$message" \
+                --data branch_to="$branch" \
+                --data branch_from="$verrel" \
+                --data repo_from="$package" \
+                --data repo_from_username="$fas_login" \
+                --data repo_from_namespace=rpms \
+                --data initial_comment="Please build with: \`fedpkg build --target='$side_tag'\`
+${bug:+
+Relates to https://bugzilla.redhat.com/show_bug.cgi?id=$bug.
+}" \
+                "https://src.fedoraproject.org/api/0/rpms/$package/pull-request/new" \
+                | jq '.full_url // .'
+        )
+        if [[ $response == "{*" ]]; then
+            echo "Could not find pull request URL in Pagure response"
+            echo "$response"
+            exit 2
+        else
+            response="${response#\"}"
+            response="${response%\"}"
+            pull_request_urls+=("$response")
+        fi
+    fi
+    cd - >/dev/null
+    rm -rf "$tmp_dir/$package"
+    i=$((i + 1))
+done
+
+## If we had permission to push to all of the repos ourselves, we could
+## do this here, rather than raising and waiting for the pull requests.
+# fedpkg chain-build --target="$side_tag" : $packages
+# bodhi updates new --from-tag "$@" "$side_tag"
+
+summary="Tree-sitter and dependent packages are being rebuilt for
+$verrel in side tag $side_tag.  Completed builds
+will appear at:
+    https://koji.fedoraproject.org/koji/builds?inherited=0&tagID=${side_tag##*-}
+
+There should be builds for each of:
+    tree-sitter ${packages[*]}
+
+${pull_request_urls:+The following pull requests have been created:
+    ${pull_request_urls[*]}
+
+}${skipped_packages:+The following packages were skipped:
+    ${skipped_packages[*]}
+
+}When all ${pull_request_urls:+pull requests are merged, and }packages are built, run:
+    bodhi updates new --from-tag ${bug:+--bugs=$bug }... '$side_tag'"
+
+echo "
+
+$summary"
+
+if [[ -n ${bug:-} ]]; then
+    # We could probably use Kerberos here, but
+    # https://bugzilla.redhat.com/docs/en/html/api/core/v1/general.html#authentication
+    # says it's not supported.
+    create_authorization_header_file bugzilla
+    
+    curl \
+        ${quiet:+--silent --show-error} \
+        ${quiet:+--output /dev/null} \
+        --fail-with-body \
+        --header @"$tmp_dir/bugzilla_authorization" \
+        --variable "summary=$summary" \
+        --expand-json "{\"id\": \"$bug\", \"comment\": \"{{summary:json}}\"}" \
+        "https://bugzilla.redhat.com/rest/bug/$bug/comment"
+fi
+
+# Clean up.
+rm -r .side-tag "$tmp_dir"
diff --git a/sources b/sources
index 782e8b0..9599e8c 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (tree-sitter-0.23.0.tar.gz) = ab821be564ac7223cc4f9659c08922a78016af9dd3bd69166706fb6a889ac175ba2712a337a1303aceb8f44beaf58640a183e77dddc2c57e35da23079d0cd7b9
+SHA512 (tree-sitter-0.25.10.tar.gz) = f0465a2fabe303c1b62f1f55ed08aa57372ac11370d229adcccd99b5e8067be53e92da281cdfbcd034e2ecefb33ac90a119eeac9035670ac8fbaa4242cb87a11
diff --git a/tree-sitter.spec b/tree-sitter.spec
index c438cac..19fac45 100644
--- a/tree-sitter.spec
+++ b/tree-sitter.spec
@@ -1,7 +1,12 @@
-%global treesitter_so_version 0
+%global tree_sitter_so_version 0
+
+# Keep these up-to-date with the values in lib/include/tree_sitter/api.h:
+%global tree_sitter_language_version 15
+%global tree_sitter_min_compatible_language_version 13
+
 
 Name:           tree-sitter
-Version:        0.23.0
+Version:        0.25.10
 Release:        %autorelease
 Summary:        An incremental parsing system for programming tools
 
@@ -28,6 +33,12 @@ edited. Tree-sitter aims to be:
 
 %package -n lib%{name}
 Summary:        Incremental parsing library for programming tools
+%{lua:
+  for i = rpm.expand('%tree_sitter_min_compatible_language_version'),
+          rpm.expand('%tree_sitter_language_version') do
+    print(string.format("Provides: tree-sitter(:LANGUAGE_VERSION) = %d\n", i))
+  end
+}
 
 %description -n lib%{name}
 Tree-sitter is a parser generator tool and an incremental parsing
@@ -59,11 +70,22 @@ export PREFIX='%{_prefix}' LIBDIR='%{_libdir}' INCLUDEDIR='%{_includedir}'
 
 find %{buildroot}%{_libdir} -type f \( -name "*.la" -o -name "*.a" \) -delete -print
 
+install -d %{buildroot}%{_datadir}/tree-sitter/queries
+
+
+%check
+grep -q '^#define TREE_SITTER_LANGUAGE_VERSION %tree_sitter_language_version' \
+     lib/include/tree_sitter/api.h
+grep -q '^#define TREE_SITTER_MIN_COMPATIBLE_LANGUAGE_VERSION %tree_sitter_min_compatible_language_version' \
+     lib/include/tree_sitter/api.h
+
 
 %files -n lib%{name}
 %license LICENSE
-%doc README.md CHANGELOG.md
-%{_libdir}/libtree-sitter.so.%{treesitter_so_version}*
+%doc README.md
+%dir %{_datadir}/tree-sitter
+%dir %{_datadir}/tree-sitter/queries
+%{_libdir}/libtree-sitter.so.%{tree_sitter_so_version}*
 
 %files -n lib%{name}-devel
 %{_includedir}/tree_sitter