TzLibre

 Basics

• Announced as a fork of Tezos in the summer of 2018.
• In 8-2019 they announced they finally released an alphanet.
• From this CoinDesk article:

"The delay between the the ICO and the platform’s launch is largely due to a conflict that pitted Tezos’ founders, Arthur and Kathleen Breitman, against Johann Gevers, former president of the Tezos Foundation. While the Breitmans controlled the code through DLS, Gevers controlled the funds.

The standoff ended when Gevers stepped down in February, but the platform still did not launch immediately. The foundation’s decision to conduct KYC/AML checks may indicate that legal and regulatory uncertainties stood in the way. The Breitmans, Dynamic Ledger Solutions, the Tezos Foundation and others associated with the project have been sued at least four times between them.

Investors have aired their grievances on a technical as well as a legal front. At least two groups of developers have announced plans to create alternate versions of Tezos and to dispense with aspects of the platform they don’t like, such as KYC and awards of pre-mined tokens to the foundation.

TzLibre announced the day after Gevers stepped down that it would launch its own version of the Tezos protocol. Another project, nTezos, emerged in response to the Tezos Foundation’s KYC announcement. Both alternate Tezos implementations’ teams are pseudonymous."