mod_pagespeed 2.1 merges the maintained 1.15 module and the ground-up 2.0 optimizer rewrite into one product line and is open source under Apache-2.0, the license the original codebase carried, with the announcement describing the relicensing as retroactive and covering the predecessor lines. The native Apache and nginx module keeps the existing pagespeed directives and filter names so 1.14 and 1.15 configurations carry over, while image transcoding and the rest of the rewrite pipeline move into a separate pagespeed-optimizer worker that runs under its own unprivileged system user and writes optimized variants to the shared Cyclone cache. The post says the source lives at github.com/We-Amp/mod_pagespeed with no editions or usage registration, and that the paid offering is support plus hardened, attested builds.
mod_pagespeed 2.1 relicensed under Apache-2.0 as its two lines converge
mod_pagespeed 2.1 merges the maintained 1.15 module and the ground-up 2.0 optimizer rewrite into one product line and is open source under Apache-2.0, the license the original codebase carried, with the announcement describing the relicensing as retroactive and covering the predecessor lines. The native Apache and nginx module keeps the existing pagespeed directives and filter names so 1.14 and 1.15 configurations carry over, while image transcoding and the rest of the rewrite pipeline move into a separate pagespeed-optimizer worker that runs under its own unprivileged system user and writes optimized variants to the shared Cyclone cache. The post says the source lives at github.com/We-Amp/mod_pagespeed with no editions or usage registration, and that the paid offering is support plus hardened, attested builds.
Source: Modpagespeed