This was announced on the Official Walking Dead twitter account earlier this evening.

Recent events have unfortunately made it impossible to complete post-production of The Walking Dead Season 10 finale, so the current season will end with its 15th episode on April 5. The planned finale will appear as a special episode later in the year. 

The first 8 episodes of The Walking Dead Season 10 will be available for free on AMC.com and the AMC app, immediately following the last Season 10 episode on Sunday, April 5 through Friday, May 1.