Danny Donohue, the longtime president of the state’s largest public-sector labor union, will not seek re-election to another term, he told officers and staff on Wednesday.

An announcement to rank-and-file members of the Civil Service Employees Association will be made on Thursday.

The election for the next CSEA president will be held in February. News of Donohue’s decision to not seek re-election was first reported by The Times Union.

Donohue has led the labor union since 1994 and, over the years, has been a pugnacious, but also pragmatic labor leader.

Donohue clashed publicly with Gov. Andrew Cuomo during a push for a new, less generous pension tier that was ultimately successful. Cuomo also sought to cost savings in contracts with both CSEA and the Public Employees Federation.

Donohue was able to clear the contract’s approval, but the vote roiled PEF’s leadership and led to its eventual ouster.

Donohue later reconciled publicly with Cuomo, joining him on efforts to bolster labor union membership following the Janus v. AFSCME Supreme Court decision.

The 2018 ruling prevents public unions from collecting fees from non-unionized workers, driving concerns some union members could simply leave or not join labor organization, but still reap the benefits of collective bargaining.