Envelope

0.7.0 - Integration Hell - 2026-07-21

Devlog / Showcase:

https://youtu.be/cYj1cDlv14w

New Features

• Added Collapsed Mail Hub structure
  • Piece of once great infrastructure now in disrepair. Generates high in the sky.
• Added Plains, Taiga, Savanna and Desert Dovecotes
• Added Charred Pigeon
  • Spawns in the nether in all biomes except Basalt Deltas
  • 1 in 5 pigeons will spawn carrying a Package
  • When brought into Overworld, will turn into a regular pigeon after some time.
    • Converted pigeons will have special "charred" variant
  • Regular pigeon that stays in the nether for some time will be converted into Charred Pigeon
• Added Pigeonhole variants for all wood types
• Added unique sounds to Pigeonhole waste scooping and pigeon entering, leaving and working
• Added ability to place Letters on the wall (by holding sneak)
• Added Letter burning: using the item on a fire or campfire will consume the letter
  • Doesn't apply to Sealed Letters
• Added ability to add a 5th box to Paper Box block, which will make it a full block
• Added fall absorption property to Paper Box block
  • The block will be broken, dropping boxes on the ground
• Added Nitwit villager behavior: throwing seeds for nearby pigeons
• Added new Pigeon behaviors:
  • Eating seeds dropped on the ground
  • Following Nitwits to potentially get some seeds
• Added 1% chance of receiving a Diamond when scooping waste from a Pigeonhole
  • Grants hidden advancement
• Added 'hanging' property to Mailbox block
  • When placed on the side of a block, the model will have slightly different style
• Added Payback Request Canceling mailing recipe to Mail Service address
  • Last request will be canceled
• Added special "Archimedes" Pigeon variant
• Added Paper Boxes and Letters to Abandoned Mineshaft and Pillager Outpost chests
• Added advancements:
  • Dirt to Diamonds
  • Just Don't Smoke It
  • And You Did It Anyway
  • Foxtile Environment
  • Overworld Wide Web
  • What Is My Purpose?
  • It's Filthy in There
  • Soft Landing
  • System Failure
• Added stats:
  • Interactions with Mailbox
  • Mail Deliveries
  • Seals Applied
  • Seals Broken
  • Letters Folded
  • Packages Created
  • Packages Opened

Changes and Fixes

Pigeon

• Improved wandering:
  • Pigeons now perch occasionally on leaves and wooden blocks, similar to parrots
  • Reduced wandering movement speed slightly
  • Other minor changes and fixes
• Improved and fixed pigeon's "home" mechanic:
  • When a Pigeon exits Pigeonhole - it becomes its home position
  • Pigeon will not wander outside 24 block radius of it
  • Pigeon will pathfind back to the home radius if it happens to be outside of it
  • Pigeon will forget its home after 3 in-game days of not resting inside a Pigeonhole, and will be free to wander off anywhere
  • Pigeon can still enter any Pigeonhole when it already has a home, which will make it its new home
• Small adjustment to pigeon spawning in village to reduce spawn counts in some cases
• Increased Pigeonhole location distance
• Minor adjustments to predator avoidance behavior
• Tired pigeons fly slower now
• Pigeons named "Drumstick" will have a slightly chonkier model
• Minor tweaks of Pigeon textures:
  • Slightly darkened underside of wings and tail.
  • Fixed texture of the underside of a Pigeon's wing being flipped.
• Fixed wings of pigeons sitting in boats or seats having wrong position
• Fixed position of Create's Conductor and Logistics hat on a Pigeon
• Fixed pigeons exiting (and re-entering immediately) the Pigeonhole when it's raining without thunderstorm

Pigeonhole

• Improved pigeon behavior when the block is smoked
• Waste scooping now uses loot table for drops
• Fixed waste generation of tired pigeons being less than intended

Mailbox

• Adjusted Mailbox collision shape to better reflect the model
  • Fixes some cases of wrong culling

Services

• Equine Assurance Bureau notice letter sending is now triggered by taming an animal instead of at random to all players at once
  • Every sent letter decreases the chance of the next. Sending them Gold Block also decreases the chance
  • Taming animals other than horses have 1 in 5 chance to trigger sending (which then also stacks with reduced chance of sending)
• Reduced virtual distance to service addresses:
  • Mail Service (1000 -> 0)
  • Automated Supply Service (2000 -> 1000)

Integration

• Added Paper Box recipe using Cardboard from Create
• Packages from Create can be delivered now
  • Address Tag is still required, regardless of the address on the package. Address Tag can be applied automatically with crafters
• When moving mail recipe ingredients into a Package with JEI - address of the recipe will be remembered and applied when items are packed, consuming an Address Tag
• Fixed mailing recipe category not displaying correctly with EMI and TooManyRecipeViewers.

Misc

• Fixed a crash occurring when a service address returned unprocessed items in a craft (sending back remaining items)

Technical Changes

• Pigeon Variants are now data-driven
  • You can create and spawn in world a custom variant using datapack + resourcepack
• Added Pigeon to minecraft:fall_damage_immune entity tag
• Renamed tag has_passenger_pigeons to spawns_passenger_pigeons
• Moved pigeon hat and backpack textures into misc subfolder
• Added 'has_mail' property to Mailbox block
  • Will be set to true if inbox is not empty
  • Unused in the mod, but can be useful for resourcepacks
• Seal data:
  • Renamed envelope:seal_stamp_impression to envelope:seal_stamp_die
    • Old component is still available, to not break existing stamps and it will be replaced with a new one on use
  • Renamed envelope:seal_impression registry to envelope:seal_symbol
  • Renamed assets/envelope/textures/seal/impression folder to assets/envelope/textures/seal/symbol
    • Existing seals will remain intact
• Renamed Equine Assurance Bureau internal name from equine_insurance_bureau to equine_assurance_bureau
• Restructured lost mail loot tables
  • Moved envelope:lost_mail to envelope:packages/lost_mail
  • Moved sub-tables into envelope:packages/lost_mail/ folder and removed lost_mail_ prefix from them
  • Open your existing Lost Mail packages before updating to this version
• Added config option for fox letter tattering