[Taku]

We will be performing shard maintenance on April 21 from 7-9:30 AM Pacific (14:00-16:30 UTC).

General:
• Resolved an issue that was allowing use of the Tier 5 Reputation Buyout tokens found in the Legendary Jem'Hadar Captain Bundle on characters that had already achieved Tier 5 or higher.

○ This error would result in Captains ending up in a bad state, which we will endeavor to manually repair in a future patch.

• Future versions of the Tier 5 Reputation Buyout Tokens from this Captain Bundle will be Account Bound, so they can be applied to other characters on your account if the Boosted Character has already reached Tier 5 in the appropriate Reputations.

○ Use of these requires Level 50+.

• Resolved an issue that was preventing the Legendary Vanguard Pilot Attack Ship [T6] from appearing in the Ship Vendor.
• Resolved an issue with the "Complete the Swarm queue 5 times" objective, where doing so on Advanced or Elite difficulties did not grant progress toward completion.
• Resolved an issue that was preventing the Polaron Quad Cannons from being upgraded.
• Resolved an issue that was allowing the Damage Immunity granted by Pilot Maneuvers to ignore the Immunity Lockout that is standard to all Damage Immunity abilities.

○ Pilot Maneuvers may still be activated during this lockout period, but will no longer grant Damage Immunity if you are affected by the lockout.

Taken directly from this Arc page.

STO: Shadow's Advance Patch Notes Index

[Scarlett]

○ Use of these requires Level 50+.

Finally.

[Miles]

• Resolved an issue that was preventing the Polaron Quad Cannons from being upgraded.

That was quick.