libsecp256k1 v0.8.0 released

[Sebastian Falbesoner]

We'd like to announce the release of version 0.8.0 of libsecp256k1:
https://github.com/bitcoin-core/secp256k1/releases/tag/v0.8.0

The most notable changes are:
* Addition of a new Silent Payments (BIP 352) module with support for
sending and scanning on full nodes.
* Addition of a function for overriding the internal SHA256 compression
function, useful for plugging in hardware-optimized SHA256 implementations.
* Performance improvements in the 64-bit field element implementation,
leading to significant speedups for many library functions on GCC and MSVC
builds (e.g., up to ~11% for ECDSA and Schnorr signature verification).
* Removal of the previously deprecated symbols
secp256k1_schnorrsig_sign (in favor of secp256k1_schnorrsig_sign32) and
secp256k1_context_no_precomp (in favor of secp256k1_context_static).

For the full changelog, see:
https://github.com/bitcoin-core/secp256k1/blob/master/CHANGELOG.md


The libsecp256k1 maintainers