Namada 0.43.0

Namada 0.43.0 is a minor relasing improving shielded sync and addressing some pre-genesis flow issues.

BUG FIXES

• Fix genesis bonds from implicit accounts. Now, only addresses
  of the form tnam1... are supported in balances.toml.
  (#3645)

FEATURES

• Partially addresses Issue #2900. Viewing and spending keys can now
  be given birthdays in the form of block heights which are loaded into
  shielded sync. Shielded sync will not try to decrypt a block before a
  keys birthday with said key. (#3653)
• The command namadan utils test-genesis now accepts --check-can-sign
  multi-arg that can be used with genesis addresses and/or public keys to
  verify that a pre-genesis wallet in the base directory is able to sign
  with the keys associated with the addresses or with the keys themselves.
  (#3660)

IMPROVEMENTS

• Removed parallel gas accounting.
  (#3615)
• Improve governance client side validation.
  (#3629)
• Masp vp and protocol now ensure that a transaction can push at most one MASP
  action. (#3632)
• Do not load context for namadan utils test-genesis command.
  (#3652)
• Speeds up client commands on networks with massive balances.toml
  files. Previously, to retrieve the native token of some network,
  we had to parse these giant files. Now, we only parse the
  necessary genesis toml files required to retrieve the native token.
  (#3655)

SDK

• Parallelize the shielded sync implementation in Namada.
  (#3578)

TESTING

• Added fuzz testing targets for txs in mempool, block proposals and finalize
  block. (#3445)
• Add IBC client upgrade test
  (#3535)