Java Edition 1.9.1

1.9.1
Edition	computer
Planned release date	March 30, 2016
See also other instances of 1.9.1	Java Edition Classic server Java Edition Minecraft Dungeons

1.9.1 was an update for Minecraft, which was released on March 30, 2016. 1.9.1 was not compatible with 1.9 servers.

Additions

• Added elytra sound effects.
  • Sound event item.elytra.flying
• Armor attribute generic.armorToughness
  • Damage formula is now damage = damage * ( 1 - max( defensePoints / 5, defensePoints - damage / ( 2 + toughness / 4 ) ) / 25 ), i.e. increased toughness means less armor defense point reduction from strong attacks.
  • Diamond armor has toughness 2, all other armor has toughness 0. A full set of diamond armor therefore gives a toughness attribute of 8.
• New option enableWeakAttacks in options.txt
  • Defaults to false. When false, the client will ignore attempts to attack when weapon cooldown is less than 75% recharged.

Changes

• Session ID is now no longer printed by the game to the log files or to the launcher.
• Entity selector c (count) now sorts on proximity using true coordinates, not coordinates snapped to the grid.
• Loot tables now also work in dispensers and droppers
  • Dispensers with arrows in jungle temples now use loot tables.
• Hoppers can now push and pull items to and from blocked chests.
• Increased limit per tick for scheduled tile ticks from 1,000 to 65,536.
• Improved AI.
• Shields no longer take damage when blocking weak attacks (less than 3 damage).
• The title of the inventory of Minecarts with Chests and Minecarts with Hoppers now match the item's name.
• Missed attacks no longer reset the cooldown if it was less than 75% charged. Note that making an attack when less than 75% charged requires the enableWeakAttacks client option be enabled.

Fixes

12 issues fixed

From released versions before 1.9.1

• MC-7961 – Hopper can't fill or empty a chest if the chest is blocked from opening.
• MC-56162 – Setting /worldborder damage amount 0 doesn't work.
• MC-95352 – Spatial target arguments c, dx, dy, dz behave unexpectedly and inconsistently.

From the 1.9 development versions

• MC-93074 – Summoned Arrows can't be assigned a scoreboard value (Too Many Arrows/Spectral Arrows Cause Command Fail)

From release version 1.9

• MC-90257 – A chain of command blocks may take more than 1 tick to traverse.
• MC-96219 – Block duplication bug with pistons (ghost blocks).
• MC-96927 – Selector c Targeting Inaccurate Entity Position
• MC-98327 – Elytra texture transparency issues.
• MC-98461 – Several languages (at least Frisian, Talossan, Ripuarian, Lojban, and LOLCAT) are not selectable, "Eesti (Eesti)" is listed as "Inglise (US)"
• MC-98587 – Command block logic sometimes fails arbitrarily
• MC-99060 – Elytra glowing effect is always black.
• MC-99697 – Typos in minecarts with hoppers and chests, reading "container.minecart"

Other fixes

• Fixed game engine adding non-existent entities (failed mob spawns, etc.) to its internal lists, increasing instability.