Cyanogen has shut down its flagship OS CyanogenMod and all its related services, the company informed in a blogpost. Note that Cyanogen’s co-founder Steve ‘Cyanogen’ Kondik had left the company in December, blaming co-founder Kirt McMaster as the reason behind the company’s failure.

The shutdown will result in devices like the One Plus One with Cyanogen OS to lose support, and users sideloading CyanogenMod will need to look elsewhere for future updates. The company’s app platform, Cyanogen Mods, will be shutdown as well. According to the company, the open source project and source code will remain available for anyone wanting to continue development. Given the popularity of the OS, the open source community will continue development, albeit under the name of Lineage Android distribution.

Cyanogen was initially a community project launched as an alternative to vanilla Android, based on Google’s source code, offering additional features like FLAC support, CPU overclocking, default root access and other tweaks. The team eventually commercialized and sought tie-ups with manufacturers to sport its OS by default on phones, including tie-ups like the one with OnePlus and with Micromax. However, these initiatives were also fraught with mismanagement as the company changed its stand with regards to exclusive licenses, following which OnePlus was temporarily stopped from shipping or selling its smartphones in India through a court order.

Interestingly, earlier this year Cyanogen had reportedly fired around 20% of its staff, including the shutting down of its India and Lisbon offices. The company, which had raised $7 million in Series A funding in 2013, had allegedly also declined the sale of its OS to Google just last year. As of now though, the company seems dead, although it’s not clear if it will continue to develop any products outside of its core portfolio. Note that, although the Cyanogen brand might be dead, the OS continues to be developed under a different name and its core developer community still stands. Additionally, manufacturers like Wileyfox, which used Cyanogen OS, will now develop its own OS.