SegWit2x is the result of the Silbert Agreement, which is to settle the Blockize contest for at least some time and to free Bitcoin from the stagnation. Now more detailed details are known, a release date is fixed. Bitmain also uses SegWit2x but prepares a UAHF to respond to a possible UASF on August 1.
Now, under the title "SegWit2x" a quite clear sketch is available, which will be the result of the compromise:
- Blocks with a capacity of about 4MB or 8,000 to 10,000 transactions
- A "weight-discount" for the non-signature data in all transactions
- A malleability fix
- A fix of problems of square scaling for larger blocks for all transactions
- Further benefits from SegWit
- The proof that hardforks are possible
- Preparing for further improvements such as Schnorr signatures, TumbleBit, Confidential transactions, Sidechains
- A new reference client that is not managed by Core