Which introduces Hero Pools
to Competitive Play - and is set to go live in Season 21. The change which will see major changes arriving to the meta of Overwatch
will be closely monitored by Blizzard, as it will directly control what heroes can or can not be chosen for a particular match. The official Patch Notes highlight how it will work.
Which will rotate weekly, as follows.
New Feature: Hero Pools
We will be introducing Hero Pools starting in Season 21 of Competitive Play. Much like Map Pools, rather than having all heroes available for play at all times, a weekly changing list of heroes will be available. The list will include the vast majority of the hero roster, with only a few being excluded during any given week. We think this feature will help keep Competitive Play interesting, as team compositions will change more frequently during a season.
It is important to note that Hero Pools is a new feature that may not last past this initial season. Throughout the season, we will be adjusting the types of Hero Pools available. In addition, it is possible we will also adjust the frequency with which they change.
Elsewhere Patch 1.45 features some minor changes to how stuns will work with each other, a slew of bug fixes, and several new features added to the Workshop - including three new maps (Workshop Chamber, Workshop Island, and Workshop Expanse) and new actions for players to create with. No major balance changes look to be coming, for the full Patch Notes - head here