Update 26.4 for Dynamics 365 Business Central 2025 Release Wave 1

What's Changed

• New Version number 26.4 by @aholstrup1 in #4020
• [26.x] [Email Retry] Fix concurrency issues by @gggdttt in #4023
• [26.x] Disable email retry by @gggdttt in #4036
• [releases/26.x] [Languages] Show all Windows Languages if no Allowed Languages are configured by @darjoo in #4047
• Add back obsoletion message for new 4o models by @darjoo in #4048
• [26.x] [Permission] Keep at least one real Super admin excluding Security Group by @gggdttt in #4054
• [releases/26.x] [Word Templates] Change table access from internal to public by @darjoo in #4081
• [releases/26.x] Disable Translated mode due to instabilities with error "End of Central Directory record could not be found" by @mazhelez in #4097
• [Backport 26.x] Fix encoding when reading blobs in agent timeline pages by @esardaya in #4123
• [releases/26.x] [Cryptography Management] Failing test by @darjoo in #4117
• [26.x] Respect feedback setting for Deactivation survey by @haoranpb in #4128
• [26.x] Enable email retry with customized setting up (#4082) by @gggdttt in #4131
• [26.x][Performance Scheduler] Allow scheduling profilers for all user types except external by @onbuyuka in #4134
• [26.x] [AI Test Tool] Backport changes by @stkillen in #4180
• [26.x] Fix email concurrency limit issue with read Isolation by @gggdttt in #4208
• [26.x] Add upgrade code for email concurrency limit by @gggdttt in #4214
• [26.x]Improve upgrade logic for email concurrency limit by @gggdttt in #4231
• [26.4] Insert Retention Policy Allowed Tables when open page instead by @haoranpb in #4281
• [releases/26.4] Hosted Pools Consolidation by @tomasmsft in #4330

Full Changelog: releases/26.3/StrictMode...releases/26.4/StrictMode