Version history

Unreleased

HF15: set_agent_permission (op-id 105) serializer, byte-identical to viz-php-lib; read-API get_agent_permissions, get_key_history, get_key_history_by_key
HF14 (Onix) Prediction Markets support:
- Serializers for all 23 broadcastable pm_* operations and set_reward_sharing; operationids.py extended to match the node's pm-branch operation order (op-id == static_variant index)
- versioned_chain_properties variants 4 (chain_properties_hf13) and 5 (chain_properties_pm, ~47 PM governance params); variant auto-selected from the fields present
- prediction_market_api read methods registered in the RPC API map
Serialization verified byte-for-byte against viz-php-lib and the live testnet node's get_transaction_hex (23 PM ops + chain-props v3/v4/v5); regression tests added for op-ids and byte output

Drop Python 3.8 and 3.9 support (both EOL); minimum is now 3.10
Modernize type annotations to PEP 585 / PEP 604
Refresh dependencies; clear all open Dependabot alerts: aiohttp 3.10 → 3.13.5, ecdsa → 0.19.2, requests → 2.33.1, pygments → 2.20
Bump pytest to 9.x
Replace abandoned m2r with maintained m2r2; align dev sphinx versions with docs/requirements.txt so docs build locally
Replace deprecated datetime.utcnow() in viz/utils.py
Fix __all__ in viz/__init__.py to reflect actual exports
Add unit tests for viz.utils and extend viz.amount coverage
Various tooling fixes (ruff target py310, mypy config, pre-commit, README)