Bilibili's First Lawyer Letter Wipes 11.4k-Star BiliRoaming in a Day — Five Years of Bangumi Unblocking Ends With a PDF
TL;DR
Bilibili sent a cease-and-desist through Shanghai Hongan Law Firm on July 6, 2026; the maintainer of the 11.4k-star BiliRoaming Xposed module wiped the repo the same day.
Bilibili sent a cease-and-desist letter through Shanghai Hongan Law Firm to BiliRoaming on July 6, 2026, demanding the developer stop all reverse engineering, delete the repository, and take down the wiki within 2 days. Maintainer yujincheng08 complied the same day; the GitHub repo — 11.4k stars, 670 forks, 64 releases — now holds only the letter.
BiliRoaming is a Bilibili Android client patch active since 2020 that removes bangumi region locks for Hong Kong / Macau / Taiwan users, plus ad-blocking, 1080P, and cover downloads. The last tagged release, v1.7.0, shipped in October 2023; yujincheng08 had already handed day-to-day maintenance to community PRs. The codebase was 94.2% Kotlin.
The letter names specific behaviors: reverse-engineering Bilibili's non-public interfaces, authentication systems, access controls, paid-content protection, and membership system; maintaining playback-authentication hooks; converting region-locked paid bangumi into playable content; bypassing secure-transmission locks to connect to proxy servers; rewriting CDN origins to "misappropriate the platform's distribution resources." It demands the developer delete all related code, patches, scripts, and documentation, stop publishing any further reverse engineering of Bilibili's technical measures, and "take effective measures to prevent similar infringement from recurring."
Bilibili has played cat-and-mouse with these projects for years: rotating APIs, resigning binaries, blocking the public parsing servers. This is the first time the listed company has run a full legal process against an individual open-source reverse-engineering project by name. BiliRoaming's public parsing server wiki had already been intermittently broken over the past six months as Bilibili shifted interfaces; the wiki is now down alongside the code.
The downstream project BiliRoamingX, which uses ReVanced-style patches, is still online for now, but the same letter template ports to the next target with one find-and-replace. yujincheng08 has not publicly responded; the README is a single PDF.
via Appinn / IT Home / NetEase Tech / GitHub yujincheng08/BiliRoaming
BiliRoaming is a Bilibili Android client patch active since 2020 that removes bangumi region locks for Hong Kong / Macau / Taiwan users, plus ad-blocking, 1080P, and cover downloads. The last tagged release, v1.7.0, shipped in October 2023; yujincheng08 had already handed day-to-day maintenance to community PRs. The codebase was 94.2% Kotlin.
The letter names specific behaviors: reverse-engineering Bilibili's non-public interfaces, authentication systems, access controls, paid-content protection, and membership system; maintaining playback-authentication hooks; converting region-locked paid bangumi into playable content; bypassing secure-transmission locks to connect to proxy servers; rewriting CDN origins to "misappropriate the platform's distribution resources." It demands the developer delete all related code, patches, scripts, and documentation, stop publishing any further reverse engineering of Bilibili's technical measures, and "take effective measures to prevent similar infringement from recurring."
Bilibili has played cat-and-mouse with these projects for years: rotating APIs, resigning binaries, blocking the public parsing servers. This is the first time the listed company has run a full legal process against an individual open-source reverse-engineering project by name. BiliRoaming's public parsing server wiki had already been intermittently broken over the past six months as Bilibili shifted interfaces; the wiki is now down alongside the code.
The downstream project BiliRoamingX, which uses ReVanced-style patches, is still online for now, but the same letter template ports to the next target with one find-and-replace. yujincheng08 has not publicly responded; the README is a single PDF.
via Appinn / IT Home / NetEase Tech / GitHub yujincheng08/BiliRoaming
