Download Android-ndk-r23b-linux-x86-64.zip -

She needed android-ndk-r23b-linux-x86-64.zip —the exact 64-bit Linux version for her Ubuntu workstation.

She copied the URL. Even though it was an old release, Google still hosted it on their dl.google.com CDN.

wget https://dl.google.com/android/repository/ndk_r23b_checksums.txt cat ndk_r23b_checksums.txt | grep linux-x86_64

Maya was a senior software engineer at a small but ambitious startup called RetroForge . Their latest project wasn't about building something new; it was about resurrecting something ancient. A major client needed to revive a 10-year-old mobile game written in pure C++ with a custom physics engine. The problem? The game was compiled for an outdated version of Android that modern NDKs (Native Development Kits) no longer supported. download android-ndk-r23b-linux-x86-64.zip

She located the entry for r23b :

After hours of research, Maya found the answer buried in a developer forum from 2021: . It was the last version to officially support GCC (GNU Compiler Collection) and a few deprecated headers their client’s codebase heavily relied upon.

Because in software, knowing which tool to use is just as important as knowing how to use it. And sometimes, the most useful download isn’t the newest—it’s the one that keeps the past alive. She needed android-ndk-r23b-linux-x86-64

Maya opened her terminal and tried to use wget on the latest NDK link, modifying the version number manually. That failed—Google uses checksums and specific redirects.

sha256sum android-ndk-r23b-linux-x86_64.zip The output matched the checksum from the JSON file. Perfect.

"version": "23.2.8568313", "date": "2021-11-02", "linux-x86_64": "size": "857 MB", "url": "https://dl.google.com/android/repository/android-ndk-r23b-linux-x86_64.zip", "checksum": "4e6773dc643c0e1f8a3b6c3b8b1b5c8a3e6f9d1c" wget https://dl

The client’s game booted on a modern Android tablet via emulation.

Scrolling past the “Latest Stable Version” buttons, she found a small, gray link: “Download older versions.” This took her to a JSON index of every NDK release since r9.