1.9.1^[1] is an update for Minecraft (Java Edition) released on March 30, 2016.^[2] 1.9.1 is not compatible with 1.9 servers. Due to a major multiplayer bug, 1.9.1 was replaced with 1.9.2 on the same day.

Additions

Items

Armor

• New armor attribute: generic.armorToughness, which includes a new formula for calculating damage:

  ${\displaystyle totalDamage=damage\times(1-\frac{max(\frac{defensePoints}{5},defensePoints-\frac{damage}{2+\frac{toughness}{4}})}{25})}$

  • 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.

Elytra

• Added sound effects while gliding with elytra.
  • Sound event item.elytra.flying.

Changes

Blocks

Dispensers

• Dispensers with arrows in jungle temples now use loot tables.
• Increased limit per tick for scheduled tile ticks from 1,000 to 65,536.

Hoppers

• Can now push and pull items to and from chests that are blocked from opening.

Items

Shields

• No longer take damage when blocking weak attacks (less than 3 damage).

Mobs

General

• AI has been improved.^{[more information needed]}

Skeletons

• Now shoot less quickly on Easy and Normal difficulties.

Non-mob entities

Minecarts with chest & minecarts with hopper

• The GUI name is now the same as the item's display name.

Command format

Selectors

• Entity selector c (count) now sorts on proximity using true coordinates, not coordinates snapped to the grid.^[3]

Gameplay

Combat

• Attack cooldown indicator is now enabled by default.^{[note 1]}

General

Loot tables

• Now work in dispensers and droppers.

Session IDs

• Are no longer printed by the game to the log files or to the launcher.^[4]

Fixes

13 issues fixed

From release versions older than 1.9

• 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 release version 1.9

• MC-90257 – A chain of command blocks may take more than 1 tick to traverse.
• MC-93074 – Summoned arrows can't be assigned a scoreboard value (too many arrows/spectral arrows cause command fail).
• 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 – Missnamed minecarts with hoppers and chests as "container.minecart".

From the 1.9.1 development versions

• MC-99396 – Players attack animation missing.

Other fixes

• Fixed game engine adding non-existent entities (failed mob spawns, etc.) to its internal lists, increasing instability.^[5]

Video

Video made by slicedlime:

Footnotes

References