> # [aMule 3.0.0](https://amule-org.github.io/changelog/3.0.0)

First major release in 5+ years (since 2.3.3, 2021-02-07). Headline changes are dramatic throughput improvements, full build-system overhaul, modernized dependency stack, native binaries for Linux / macOS / Windows, and a broad legacy-API cleanup.

## Highlights​

• - Throughput rewrite. Disk I/O moved off the main thread, ASIO/EPOLLET races fixed, throttlers replaced with proper token-bucket limiters. Peer-to-peer download on the same hardware sees ~100–380× speedups across macOS / Linux / Windows over 2.3.3, plus aMule 3.0.0 sustains ~4.8× the upload throughput of eMule 0.70b on Windows. See Performance for the full matrix and per-PR breakdown.

• - Both throttlers (MaxUpload, MaxDownload) were also broken pre-fix — MaxUpload=0 capped at "current rate + 5 KB/s", MaxDownload was a ratio controller rather than a literal cap. Both rewritten (#461, #491). Important user-facing bug fixes, but secondary to the headline numbers.

• - Big-library / big-shareset scaling. Follow-up wave targeting nodes with 100 k+ shared files: per-file EC payload caches (#725, #736), skip-unchanged EC updates (#727), local-peer ZLIB bypass (#728), and a string of O(N²) → O(N log N) / O(1) algorithmic fixes across SharedFileList, SharedFilesCtrl, KnownFileList, wxListCtrl, ExternalConn, and amuleweb — the WebUI / amulegui stay responsive even on libraries where the previous GUI took minutes to redraw.

• - CMake replaces autotools. Single build system, modern toolchain — minimum CMake 3.10, minimum wxWidgets 3.2.0.

• - Native binaries for every major desktop. AppImage (x86_64 + aarch64), Flatpak (x86_64 + aarch64), macOS Universal2 .dmg (now bundling aMuleGUI.app alongside aMule.app, #529), Windows portable .zip and NSIS installer (x64 + ARM64, #740). First-run desktop integration prompt for AppImage; cross-platform autostart-on-login toggle (#744).

• - Auto-rescan of shared folders. wxFileSystemWatcher-driven (#591), with recursive vs explicit-share intent split (#606) and coverage of Incoming + per-category Incoming dirs (#743).

• - HTTPS works again. CHTTPDownloadThread rewritten on top of wxWebRequest; the hand-rolled stack had silently stopped working against modern TLS.

• - Kad parallel searches with alpha-frontier widening.

• - MaxMindDB replaces deprecated GeoIP for IP→country.

## Performance​

Throughput work landed across April 2026. The bottom-line cross-platform numbers first, then the per-PR contributions that produced them.

## Cross-platform end-to-end (2.3.3 vs 3.0.0)​

Sustained over a 90 s window, single LAN peer downloading a 30 GB file from an x86_64 Linux seeder running the same aMule version under test.

Per-platform breakdown of the seeder-side vs leecher-side contributions:

The seeder-side contribution (PR #451 CUploadDiskIOThread + ASIO fixes) dominates everywhere; the leecher-side contribution (#454 partfile-write offload + #484 throttler-wake fix + #491 token-bucket cap) stacks another ~4–6× on top.

## vs eMule 0.70b (Windows · same UTM hardware)​

## Upload​

• - #451 — eMule CUploadDiskIOThread port. Disk reads + ed2k packet construction off the main thread, RC4 stream-desync race fixed in the ASIO layer, EPOLLET spurious-wakeup fix in HandleRead, adaptive per-slot packet sizing (10 KiB → EMBLOCKSIZE). Dominant contributor to the upload gain.

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