Releases
Major Radix protocol upgrades and Babylon-era release notes — what shipped, when, and what each release unlocks.
Releases contains 6 pages, last updated Jul 13, 2026.

Radix Developer Environment (Alexandria)
Alexandria [ /ˌæləgˈzændriə/ ] was a pre-Babylon version of the Radix network and appended the Olympia release with a Scrypto developer environment fo…

Radix Mainnet (Babylon)
Babylon [ /ˈbæbəˌlɑn/ ] is the current version release of the Radix network that debuted smart contracts and the Radix Engine execution environment. T…
Radix Mainnet (Olympia)
Olympia [ /oʊˈlɪmpiə/ ] was was the initial release of the Radix Public Network and introduced the core node software, desktop wallet, staking, the Ra…

Radix Mainnet (Xi'an)
Xi’an [ /ʃi’æn/ ] will be the next major release of the Radix network . Xi’an will allow an unlimited number of shard groups , enabling Radix’s sharde…
RCnet
RCnet was a test network developed by Radix to provide developers with the tools and standards necessary for creating more robust applications on Radi…
Stokenet
Stokenet is the persistent public test network for Radix. Launched in July 2021, Stokenet serves as a sandboxed environment for Radix users and projec…
