From cba72177572a3c42606f32ad625a7f1dba98e3c3 Mon Sep 17 00:00:00 2001
From: Tianon Gravi <admwiggin@gmail.com>
Date: Wed, 14 Oct 2026 15:22:33 -0700
Subject: [PATCH 1/2] Add "libmpdec" to build deps on 3.15+

This unlocks the `_decimal` fast-path for the `decimal` stdlib module, making Decimal arithmetic ~16x faster (or rather, avoiding a 16x slowdown regression compared to 3.14 and below).
---
 3.15/alpine3.23/Dockerfile       |  1 +
 3.15/alpine3.24/Dockerfile       |  1 +
 3.15/bookworm/Dockerfile         |  1 +
 3.15/slim-bookworm/Dockerfile    |  1 +
 3.15/slim-trixie/Dockerfile      |  1 +
 3.15/trixie/Dockerfile           |  1 +
 3.16-rc/alpine3.23/Dockerfile    |  1 +
 3.16-rc/alpine3.24/Dockerfile    |  1 +
 3.16-rc/bookworm/Dockerfile      |  1 +
 3.16-rc/slim-bookworm/Dockerfile |  1 +
 3.16-rc/slim-trixie/Dockerfile   |  1 +
 3.16-rc/trixie/Dockerfile        |  1 +
 Dockerfile-linux.template        | 10 ++++++++++
 13 files changed, 22 insertions(+)

diff --git a/3.15/alpine3.23/Dockerfile b/3.15/alpine3.23/Dockerfile
index aca825d29..649a3e89a 100644
--- a/3.15/alpine3.23/Dockerfile
+++ b/3.15/alpine3.23/Dockerfile
@@ -36,6 +36,7 @@ RUN set -eux; \
 		libtirpc-dev \
 		linux-headers \
 		make \
+		mpdecimal-dev \
 		ncurses-dev \
 		openssl-dev \
 		pax-utils \
diff --git a/3.15/alpine3.24/Dockerfile b/3.15/alpine3.24/Dockerfile
index 84515c4dd..4c3f6d8e7 100644
--- a/3.15/alpine3.24/Dockerfile
+++ b/3.15/alpine3.24/Dockerfile
@@ -36,6 +36,7 @@ RUN set -eux; \
 		libtirpc-dev \
 		linux-headers \
 		make \
+		mpdecimal-dev \
 		ncurses-dev \
 		openssl-dev \
 		pax-utils \
diff --git a/3.15/bookworm/Dockerfile b/3.15/bookworm/Dockerfile
index 964b856ce..e8ef85551 100644
--- a/3.15/bookworm/Dockerfile
+++ b/3.15/bookworm/Dockerfile
@@ -27,6 +27,7 @@ RUN set -eux; \
 	savedAptMark="$(apt-mark showmanual)"; \
 	apt-get update; \
 	apt-get install -y --no-install-recommends \
+		libmpdec-dev \
 		libzstd-dev \
 	; \
 	\
diff --git a/3.15/slim-bookworm/Dockerfile b/3.15/slim-bookworm/Dockerfile
index 50179ed28..7bbafab0f 100644
--- a/3.15/slim-bookworm/Dockerfile
+++ b/3.15/slim-bookworm/Dockerfile
@@ -38,6 +38,7 @@ RUN set -eux; \
 		libffi-dev \
 		libgdbm-dev \
 		liblzma-dev \
+		libmpdec-dev \
 		libncursesw5-dev \
 		libreadline-dev \
 		libsqlite3-dev \
diff --git a/3.15/slim-trixie/Dockerfile b/3.15/slim-trixie/Dockerfile
index f3b8d94f0..56a988b40 100644
--- a/3.15/slim-trixie/Dockerfile
+++ b/3.15/slim-trixie/Dockerfile
@@ -38,6 +38,7 @@ RUN set -eux; \
 		libffi-dev \
 		libgdbm-dev \
 		liblzma-dev \
+		libmpdec-dev \
 		libncursesw5-dev \
 		libreadline-dev \
 		libsqlite3-dev \
diff --git a/3.15/trixie/Dockerfile b/3.15/trixie/Dockerfile
index 48c815cab..d643bc79c 100644
--- a/3.15/trixie/Dockerfile
+++ b/3.15/trixie/Dockerfile
@@ -27,6 +27,7 @@ RUN set -eux; \
 	savedAptMark="$(apt-mark showmanual)"; \
 	apt-get update; \
 	apt-get install -y --no-install-recommends \
+		libmpdec-dev \
 		libzstd-dev \
 	; \
 	\
diff --git a/3.16-rc/alpine3.23/Dockerfile b/3.16-rc/alpine3.23/Dockerfile
index cbdbab738..935da0f4b 100644
--- a/3.16-rc/alpine3.23/Dockerfile
+++ b/3.16-rc/alpine3.23/Dockerfile
@@ -36,6 +36,7 @@ RUN set -eux; \
 		libtirpc-dev \
 		linux-headers \
 		make \
+		mpdecimal-dev \
 		ncurses-dev \
 		openssl-dev \
 		pax-utils \
diff --git a/3.16-rc/alpine3.24/Dockerfile b/3.16-rc/alpine3.24/Dockerfile
index e187aa140..b9a7af65d 100644
--- a/3.16-rc/alpine3.24/Dockerfile
+++ b/3.16-rc/alpine3.24/Dockerfile
@@ -36,6 +36,7 @@ RUN set -eux; \
 		libtirpc-dev \
 		linux-headers \
 		make \
+		mpdecimal-dev \
 		ncurses-dev \
 		openssl-dev \
 		pax-utils \
diff --git a/3.16-rc/bookworm/Dockerfile b/3.16-rc/bookworm/Dockerfile
index 3241c347a..1fbda45a0 100644
--- a/3.16-rc/bookworm/Dockerfile
+++ b/3.16-rc/bookworm/Dockerfile
@@ -27,6 +27,7 @@ RUN set -eux; \
 	savedAptMark="$(apt-mark showmanual)"; \
 	apt-get update; \
 	apt-get install -y --no-install-recommends \
+		libmpdec-dev \
 		libzstd-dev \
 	; \
 	\
diff --git a/3.16-rc/slim-bookworm/Dockerfile b/3.16-rc/slim-bookworm/Dockerfile
index 56009c04c..be8e82d84 100644
--- a/3.16-rc/slim-bookworm/Dockerfile
+++ b/3.16-rc/slim-bookworm/Dockerfile
@@ -38,6 +38,7 @@ RUN set -eux; \
 		libffi-dev \
 		libgdbm-dev \
 		liblzma-dev \
+		libmpdec-dev \
 		libncursesw5-dev \
 		libreadline-dev \
 		libsqlite3-dev \
diff --git a/3.16-rc/slim-trixie/Dockerfile b/3.16-rc/slim-trixie/Dockerfile
index f660c47c2..8dca73628 100644
--- a/3.16-rc/slim-trixie/Dockerfile
+++ b/3.16-rc/slim-trixie/Dockerfile
@@ -38,6 +38,7 @@ RUN set -eux; \
 		libffi-dev \
 		libgdbm-dev \
 		liblzma-dev \
+		libmpdec-dev \
 		libncursesw5-dev \
 		libreadline-dev \
 		libsqlite3-dev \
diff --git a/3.16-rc/trixie/Dockerfile b/3.16-rc/trixie/Dockerfile
index b924fa30f..45055a827 100644
--- a/3.16-rc/trixie/Dockerfile
+++ b/3.16-rc/trixie/Dockerfile
@@ -27,6 +27,7 @@ RUN set -eux; \
 	savedAptMark="$(apt-mark showmanual)"; \
 	apt-get update; \
 	apt-get install -y --no-install-recommends \
+		libmpdec-dev \
 		libzstd-dev \
 	; \
 	\
diff --git a/Dockerfile-linux.template b/Dockerfile-linux.template
index b3f9886d4..4f0a0272b 100644
--- a/Dockerfile-linux.template
+++ b/Dockerfile-linux.template
@@ -120,6 +120,11 @@ RUN set -eux; \
 		if IN(env.version; "3.11", "3.12", "3.13") then empty else
 			"zstd-dev"
 		end,
+		if IN(env.version; "3.11", "3.12", "3.13", "3.14") then empty else
+			# https://github.com/docker-library/python/issues/1136
+			# https://github.com/python/cpython/issues/115119
+			"mpdecimal-dev"
+		end,
 		empty
 	else
 		if is_slim then
@@ -149,6 +154,11 @@ RUN set -eux; \
 		if IN(env.version; "3.11", "3.12", "3.13") then empty else
 			"libzstd-dev"
 		end,
+		if IN(env.version; "3.11", "3.12", "3.13", "3.14") then empty else
+			# https://github.com/docker-library/python/issues/1136
+			# https://github.com/python/cpython/issues/115119
+			"libmpdec-dev"
+		end,
 		empty
 	end
 ] -}}

From 5bb3b302e532643acc0eebbdbcdbcabc5dddaa25 Mon Sep 17 00:00:00 2001
From: Tianon Gravi <admwiggin@gmail.com>
Date: Fri, 16 Oct 2026 11:14:53 -0700
Subject: [PATCH 2/2] Ditch bookworm for 3.16+, `--without-system-libmpdec` for
 3.15 bookworm

---
 3.15/bookworm/Dockerfile         |   3 +-
 3.15/slim-bookworm/Dockerfile    |   3 +-
 3.16-rc/bookworm/Dockerfile      | 131 ---------------------------
 3.16-rc/slim-bookworm/Dockerfile | 147 -------------------------------
 Dockerfile-linux.template        |   6 +-
 versions.json                    |   2 -
 versions.sh                      |   5 +-
 7 files changed, 13 insertions(+), 284 deletions(-)
 delete mode 100644 3.16-rc/bookworm/Dockerfile
 delete mode 100644 3.16-rc/slim-bookworm/Dockerfile

diff --git a/3.15/bookworm/Dockerfile b/3.15/bookworm/Dockerfile
index e8ef85551..d56e300f4 100644
--- a/3.15/bookworm/Dockerfile
+++ b/3.15/bookworm/Dockerfile
@@ -27,7 +27,6 @@ RUN set -eux; \
 	savedAptMark="$(apt-mark showmanual)"; \
 	apt-get update; \
 	apt-get install -y --no-install-recommends \
-		libmpdec-dev \
 		libzstd-dev \
 	; \
 	\
@@ -47,6 +46,8 @@ RUN set -eux; \
 		--enable-shared \
 		$(test "${gnuArch%%-*}" != 'riscv64' && echo '--with-lto') \
 		--with-ensurepip \
+# https://github.com/docker-library/python/pull/1137#issuecomment-6180817683
+		--without-system-libmpdec \
 	; \
 	nproc="$(nproc)"; \
 	EXTRA_CFLAGS="$(dpkg-buildflags --get CFLAGS)"; \
diff --git a/3.15/slim-bookworm/Dockerfile b/3.15/slim-bookworm/Dockerfile
index 7bbafab0f..798980b0a 100644
--- a/3.15/slim-bookworm/Dockerfile
+++ b/3.15/slim-bookworm/Dockerfile
@@ -38,7 +38,6 @@ RUN set -eux; \
 		libffi-dev \
 		libgdbm-dev \
 		liblzma-dev \
-		libmpdec-dev \
 		libncursesw5-dev \
 		libreadline-dev \
 		libsqlite3-dev \
@@ -68,6 +67,8 @@ RUN set -eux; \
 		--enable-shared \
 		$(test "${gnuArch%%-*}" != 'riscv64' && echo '--with-lto') \
 		--with-ensurepip \
+# https://github.com/docker-library/python/pull/1137#issuecomment-6180817683
+		--without-system-libmpdec \
 	; \
 	nproc="$(nproc)"; \
 	EXTRA_CFLAGS="$(dpkg-buildflags --get CFLAGS)"; \
diff --git a/3.16-rc/bookworm/Dockerfile b/3.16-rc/bookworm/Dockerfile
deleted file mode 100644
index 1fbda45a0..000000000
--- a/3.16-rc/bookworm/Dockerfile
+++ /dev/null
@@ -1,131 +0,0 @@
-#
-# NOTE: THIS DOCKERFILE IS GENERATED VIA "apply-templates.sh"
-#
-# PLEASE DO NOT EDIT IT DIRECTLY.
-#
-
-FROM buildpack-deps:bookworm
-
-# ensure local python is preferred over distribution python
-ENV PATH /usr/local/bin:$PATH
-
-# runtime dependencies
-RUN set -eux; \
-	apt-get update; \
-	apt-get install -y --no-install-recommends \
-		libbluetooth-dev \
-		tk-dev \
-		uuid-dev \
-	; \
-	rm -rf /var/lib/apt/lists/*
-
-ENV PYTHON_VERSION 3.16.0a1
-ENV PYTHON_SHA256 dcaa9029436b723e33412c68ca17f0130be73058e47a3a7c049cb8cdf6034ee9
-
-RUN set -eux; \
-	\
-	savedAptMark="$(apt-mark showmanual)"; \
-	apt-get update; \
-	apt-get install -y --no-install-recommends \
-		libmpdec-dev \
-		libzstd-dev \
-	; \
-	\
-	wget -O python.tar.xz "https://www.python.org/ftp/python/${PYTHON_VERSION%%[a-z]*}/Python-$PYTHON_VERSION.tar.xz"; \
-	echo "$PYTHON_SHA256 *python.tar.xz" | sha256sum -c -; \
-	mkdir -p /usr/src/python; \
-	tar --extract --directory /usr/src/python --strip-components=1 --file python.tar.xz; \
-	rm python.tar.xz; \
-	\
-	cd /usr/src/python; \
-	gnuArch="$(dpkg-architecture --query DEB_BUILD_GNU_TYPE)"; \
-	./configure \
-		--build="$gnuArch" \
-		--enable-loadable-sqlite-extensions \
-		--enable-optimizations \
-		--enable-option-checking=fatal \
-		--enable-shared \
-		$(test "${gnuArch%%-*}" != 'riscv64' && echo '--with-lto') \
-		--with-ensurepip \
-	; \
-	nproc="$(nproc)"; \
-	EXTRA_CFLAGS="$(dpkg-buildflags --get CFLAGS)"; \
-	LDFLAGS="$(dpkg-buildflags --get LDFLAGS)"; \
-	arch="$(dpkg --print-architecture)"; arch="${arch##*-}"; \
-# https://docs.python.org/3.12/howto/perf_profiling.html
-# https://github.com/docker-library/python/pull/1000#issuecomment-2597021615
-	case "$arch" in \
-		amd64|arm64) \
-			# only add "-mno-omit-leaf" on arches that support it
-			# https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/x86-Options.html#index-momit-leaf-frame-pointer-2
-			# https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/AArch64-Options.html#index-momit-leaf-frame-pointer
-			EXTRA_CFLAGS="${EXTRA_CFLAGS:-} -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer"; \
-			;; \
-		i386) \
-			# don't enable frame-pointers on 32bit x86 due to performance drop.
-			;; \
-		*) \
-			# other arches don't support "-mno-omit-leaf"
-			EXTRA_CFLAGS="${EXTRA_CFLAGS:-} -fno-omit-frame-pointer"; \
-			;; \
-	esac; \
-	make -j "$nproc" \
-		"EXTRA_CFLAGS=${EXTRA_CFLAGS:-}" \
-		"LDFLAGS=${LDFLAGS:-}" \
-	; \
-# https://github.com/docker-library/python/issues/784
-# prevent accidental usage of a system installed libpython of the same version
-	rm python; \
-	make -j "$nproc" \
-		"EXTRA_CFLAGS=${EXTRA_CFLAGS:-}" \
-		"LDFLAGS=${LDFLAGS:-} -Wl,-rpath='\$\$ORIGIN/../lib'" \
-		python \
-	; \
-	make install; \
-	\
-# enable GDB to load debugging data: https://github.com/docker-library/python/pull/701
-	bin="$(readlink -ve /usr/local/bin/python3)"; \
-	dir="$(dirname "$bin")"; \
-	mkdir -p "/usr/share/gdb/auto-load/$dir"; \
-	cp -vL Tools/gdb/libpython.py "/usr/share/gdb/auto-load/$bin-gdb.py"; \
-	\
-	cd /; \
-	rm -rf /usr/src/python; \
-	\
-	find /usr/local -depth \
-		\( \
-			\( -type d -a \( -name test -o -name tests -o -name idle_test \) \) \
-			-o \( -type f -a \( -name '*.pyc' -o -name '*.pyo' -o -name 'libpython*.a' \) \) \
-		\) -exec rm -rf '{}' + \
-	; \
-	\
-	ldconfig; \
-	\
-	apt-mark auto '.*' > /dev/null; \
-	apt-mark manual $savedAptMark; \
-	find /usr/local -type f -executable -not \( -name '*tkinter*' \) -exec ldd '{}' ';' \
-		| awk '/=>/ { so = $(NF-1); if (index(so, "/usr/local/") == 1) { next }; gsub("^/(usr/)?", "", so); printf "*%s\n", so }' \
-		| sort -u \
-		| xargs -rt dpkg-query --search \
-# https://manpages.debian.org/bookworm/dpkg/dpkg-query.1.en.html#S (we ignore diversions and it'll be really unusual for more than one package to provide any given .so file)
-		| awk 'sub(":$", "", $1) { print $1 }' \
-		| sort -u \
-		| xargs -r apt-mark manual \
-	; \
-	apt-get purge -y --auto-remove -o APT::AutoRemove::RecommendsImportant=false; \
-	rm -rf /var/lib/apt/lists/*; \
-	\
-	export PYTHONDONTWRITEBYTECODE=1; \
-	python3 --version; \
-	pip3 --version
-
-# make some useful symlinks that are expected to exist ("/usr/local/bin/python" and friends)
-RUN set -eux; \
-	for src in idle3 pip3 pydoc3 python3 python3-config; do \
-		dst="$(echo "$src" | tr -d 3)"; \
-		[ -s "/usr/local/bin/$src" ]; \
-		[ ! -e "/usr/local/bin/$dst" ]; \
-		ln -svT "$src" "/usr/local/bin/$dst"; \
-	done
-
-CMD ["python3"]
diff --git a/3.16-rc/slim-bookworm/Dockerfile b/3.16-rc/slim-bookworm/Dockerfile
deleted file mode 100644
index be8e82d84..000000000
--- a/3.16-rc/slim-bookworm/Dockerfile
+++ /dev/null
@@ -1,147 +0,0 @@
-#
-# NOTE: THIS DOCKERFILE IS GENERATED VIA "apply-templates.sh"
-#
-# PLEASE DO NOT EDIT IT DIRECTLY.
-#
-
-FROM debian:bookworm-slim
-
-# ensure local python is preferred over distribution python
-ENV PATH /usr/local/bin:$PATH
-
-# runtime dependencies
-RUN set -eux; \
-	apt-get update; \
-	apt-get install -y --no-install-recommends \
-		ca-certificates \
-		netbase \
-		tzdata \
-	; \
-	rm -rf /var/lib/apt/lists/*
-
-ENV PYTHON_VERSION 3.16.0a1
-ENV PYTHON_SHA256 dcaa9029436b723e33412c68ca17f0130be73058e47a3a7c049cb8cdf6034ee9
-
-RUN set -eux; \
-	\
-	savedAptMark="$(apt-mark showmanual)"; \
-	apt-get update; \
-	apt-get install -y --no-install-recommends \
-		dpkg-dev \
-		g++ \
-		gcc \
-		gnupg \
-		libbluetooth-dev \
-		libbz2-dev \
-		libc6-dev \
-		libdb-dev \
-		libffi-dev \
-		libgdbm-dev \
-		liblzma-dev \
-		libmpdec-dev \
-		libncursesw5-dev \
-		libreadline-dev \
-		libsqlite3-dev \
-		libssl-dev \
-		libzstd-dev \
-		make \
-		tk-dev \
-		uuid-dev \
-		wget \
-		xz-utils \
-		zlib1g-dev \
-	; \
-	\
-	wget -O python.tar.xz "https://www.python.org/ftp/python/${PYTHON_VERSION%%[a-z]*}/Python-$PYTHON_VERSION.tar.xz"; \
-	echo "$PYTHON_SHA256 *python.tar.xz" | sha256sum -c -; \
-	mkdir -p /usr/src/python; \
-	tar --extract --directory /usr/src/python --strip-components=1 --file python.tar.xz; \
-	rm python.tar.xz; \
-	\
-	cd /usr/src/python; \
-	gnuArch="$(dpkg-architecture --query DEB_BUILD_GNU_TYPE)"; \
-	./configure \
-		--build="$gnuArch" \
-		--enable-loadable-sqlite-extensions \
-		--enable-optimizations \
-		--enable-option-checking=fatal \
-		--enable-shared \
-		$(test "${gnuArch%%-*}" != 'riscv64' && echo '--with-lto') \
-		--with-ensurepip \
-	; \
-	nproc="$(nproc)"; \
-	EXTRA_CFLAGS="$(dpkg-buildflags --get CFLAGS)"; \
-	LDFLAGS="$(dpkg-buildflags --get LDFLAGS)"; \
-	LDFLAGS="${LDFLAGS:-} -Wl,--strip-all"; \
-	arch="$(dpkg --print-architecture)"; arch="${arch##*-}"; \
-# https://docs.python.org/3.12/howto/perf_profiling.html
-# https://github.com/docker-library/python/pull/1000#issuecomment-2597021615
-	case "$arch" in \
-		amd64|arm64) \
-			# only add "-mno-omit-leaf" on arches that support it
-			# https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/x86-Options.html#index-momit-leaf-frame-pointer-2
-			# https://gcc.gnu.org/onlinedocs/gcc-14.2.0/gcc/AArch64-Options.html#index-momit-leaf-frame-pointer
-			EXTRA_CFLAGS="${EXTRA_CFLAGS:-} -fno-omit-frame-pointer -mno-omit-leaf-frame-pointer"; \
-			;; \
-		i386) \
-			# don't enable frame-pointers on 32bit x86 due to performance drop.
-			;; \
-		*) \
-			# other arches don't support "-mno-omit-leaf"
-			EXTRA_CFLAGS="${EXTRA_CFLAGS:-} -fno-omit-frame-pointer"; \
-			;; \
-	esac; \
-	make -j "$nproc" \
-		"EXTRA_CFLAGS=${EXTRA_CFLAGS:-}" \
-		"LDFLAGS=${LDFLAGS:-}" \
-	; \
-# https://github.com/docker-library/python/issues/784
-# prevent accidental usage of a system installed libpython of the same version
-	rm python; \
-	make -j "$nproc" \
-		"EXTRA_CFLAGS=${EXTRA_CFLAGS:-}" \
-		"LDFLAGS=${LDFLAGS:-} -Wl,-rpath='\$\$ORIGIN/../lib'" \
-		python \
-	; \
-	make install; \
-	\
-	cd /; \
-	rm -rf /usr/src/python; \
-	\
-	find /usr/local -depth \
-		\( \
-			\( -type d -a \( -name test -o -name tests -o -name idle_test \) \) \
-			-o \( -type f -a \( -name '*.pyc' -o -name '*.pyo' -o -name 'libpython*.a' \) \) \
-		\) -exec rm -rf '{}' + \
-	; \
-	\
-	ldconfig; \
-	\
-	apt-mark auto '.*' > /dev/null; \
-	apt-mark manual $savedAptMark; \
-	find /usr/local -type f -executable -not \( -name '*tkinter*' \) -exec ldd '{}' ';' \
-		| awk '/=>/ { so = $(NF-1); if (index(so, "/usr/local/") == 1) { next }; gsub("^/(usr/)?", "", so); printf "*%s\n", so }' \
-		| sort -u \
-		| xargs -rt dpkg-query --search \
-# https://manpages.debian.org/bookworm/dpkg/dpkg-query.1.en.html#S (we ignore diversions and it'll be really unusual for more than one package to provide any given .so file)
-		| awk 'sub(":$", "", $1) { print $1 }' \
-		| sort -u \
-		| xargs -r apt-mark manual \
-	; \
-	apt-get purge -y --auto-remove -o APT::AutoRemove::RecommendsImportant=false; \
-	rm -rf /var/lib/apt/lists/*; \
-	\
-	export PYTHONDONTWRITEBYTECODE=1; \
-	python3 --version; \
-	pip3 --version
-
-# make some useful symlinks that are expected to exist ("/usr/local/bin/python" and friends)
-RUN set -eux; \
-	for src in idle3 pip3 pydoc3 python3 python3-config; do \
-		dst="$(echo "$src" | tr -d 3)"; \
-		[ -s "/usr/local/bin/$src" ]; \
-		[ ! -e "/usr/local/bin/$dst" ]; \
-		ln -svT "$src" "/usr/local/bin/$dst"; \
-	done
-
-CMD ["python3"]
diff --git a/Dockerfile-linux.template b/Dockerfile-linux.template
index 4f0a0272b..f95548890 100644
--- a/Dockerfile-linux.template
+++ b/Dockerfile-linux.template
@@ -154,7 +154,7 @@ RUN set -eux; \
 		if IN(env.version; "3.11", "3.12", "3.13") then empty else
 			"libzstd-dev"
 		end,
-		if IN(env.version; "3.11", "3.12", "3.13", "3.14") then empty else
+		if IN(env.version; "3.11", "3.12", "3.13", "3.14") then empty elif env.variant | contains("bookworm") then empty else
 			# https://github.com/docker-library/python/issues/1136
 			# https://github.com/python/cpython/issues/115119
 			"libmpdec-dev"
@@ -214,6 +214,10 @@ RUN set -eux; \
 {{ # skip LTO on riscv64: https://github.com/docker-library/python/pull/935, https://github.com/docker-library/python/pull/1038 -}}
 		$(test "${gnuArch%%-*}" != 'riscv64' && echo '--with-lto') \
 		--with-ensurepip \
+{{ if env.version == "3.15" and (env.variant | contains("bookworm")) then ( -}}
+# https://github.com/docker-library/python/pull/1137#issuecomment-6180817683
+		--without-system-libmpdec \
+{{ ) else "" end -}}
 	; \
 	nproc="$(nproc)"; \
 {{ if is_alpine then ( -}}
diff --git a/versions.json b/versions.json
index 29f6731c9..3afc8591b 100644
--- a/versions.json
+++ b/versions.json
@@ -106,8 +106,6 @@
     "variants": [
       "trixie",
       "slim-trixie",
-      "bookworm",
-      "slim-bookworm",
       "alpine3.24",
       "alpine3.23"
     ],
diff --git a/versions.sh b/versions.sh
index ea74dd774..781a5e544 100755
--- a/versions.sh
+++ b/versions.sh
@@ -191,7 +191,10 @@ for version in "${versions[@]}"; do
 			variants: [
 				(
 					"trixie",
-					"bookworm",
+					if IN(env.rcVersion; "3.11", "3.12", "3.13", "3.14", "3.15") then
+						# https://github.com/docker-library/python/pull/1137#issuecomment-6180817683
+						"bookworm"
+					else empty end,
 					empty
 				| ., "slim-" + .), # https://github.com/docker-library/ruby/pull/142#issuecomment-320012893
 				(