The CyanogenMod open-source community on Monday released CyanogenMod 12.1 stable builds based on Android 5.1.1 Lollipop, alongside security releases for CM11.0 and CM12.0 including fixes for the Stagefright vulnerability and other recent security disclosures. The firm says that not all the CM-based devices would be receiving these releases. Only those devices marked as 'Good to go' by the maintainer would get the updates.
As per the company, the new CM11.0 and CM12.0 builds address number of security issues on top of their previous versions. The new builds are "modified to include the recent security disclosures, including the vulnerabilities in Stagefright." The community recommends users with previous CM 11.0 and CM 12.0 builds to update to new version. However, the users of CM 11.0 and CM 12.0 weeklies (nightlies) need not update.
As for CM12.1, the new version release marks the team's first Android 5.1.1 Lollipop-based CM build release as well. The version includes IMAP idle support, SDK v1 release and the above-mentioned security fixes. The CyanogenMod community in its blog post warned that "If you are updating to any of these builds, please pay close attention that the CM release version and the version of your third party installs (kernels, mods, gapps, etc) are compatible."
The firm reportedly started rolling out the CM12.1S (Cyanogen OS 12.1) to OnePlus One users last week. The OnePlus One CM12.1S update notification also suggested the inclusion of the patches for the recent Stagefright security exploit. The OnePlus One CM 12.1 update is also said to bring the activation of the home button in Chrome. The home page, as reported before, will set to Bing search engine by default, which is likely the result of Microsoft and Cyanogen tie-up announcement. Other new features include a new LiveDisplay feature, integration of Calendar with Boxer email, an updated Cyanogen Browser, a new launcher, Truecaller integration, and a new AudioFX app.
The update is expected to also reach Yu Yureka and Yu Yuphoria users soon, considering that Yu Televentures, Micromax's subsidiary, had in June announced that the Android 5.1 Lollipop-based CM 12.1 update for the Yu Yureka and Yuphoria has entered the final phase of testing.