diff --git a/CHANGELOG.md b/CHANGELOG.md
index b08b97f..37b5e7f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,22 @@
 All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
+## [Version 3.3.1] - 2024-06-06
+
+### Added
+
+- Added max-sprites definition.
+- Added Cocos2d-x template.
+
+### Changed
+
+- Abort globbing when pattern is too coarse.
+
+### Fixed
+
+- Ensure the lowest index duplicate sprite is the one that is kept.
+- globbing does not always search subdirectories.
+
 ## [Version 3.3.0] - 2023-05-28
 
 ### Added
@@ -228,6 +244,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Fixed -- commandline arguments.
 - Fixed sample cpp.template.
 
+[version 3.3.1]: https://github.com/houmain/spright/compare/3.3.0...3.3.1
 [version 3.3.0]: https://github.com/houmain/spright/compare/3.2.0...3.3.0
 [version 3.2.0]: https://github.com/houmain/spright/compare/3.1.0...3.2.0
 [version 3.1.0]: https://github.com/houmain/spright/compare/3.0.0...3.1.0
diff --git a/README.md b/README.md
index 4c993bb..90b394c 100644
--- a/README.md
+++ b/README.md
@@ -242,13 +242,14 @@ The following table contains a list of all definitions, with the item each affec
 | **input** | - | path | Adds a new input file at _path_. It can define a single file or an un-/bounded sequence of files (e.g. `"frames{0-}.png", "frames{0001-0013}.png"`). |
 | path | input | path | A _path_ which should be prepended to the input's path. |
 | colorkey | input | [color] | Specifies that the input has a color, which should be considered transparent (in hex notation e.g. `FF00FF`). |
-| grid | input | x, y | Specifies that the input contains multiple sprites, arranged in a grid of a certain cell size. In this mode the _rect_ of each _sprite_ is deduced from the grid. Each _sprite_ automatically advances the current cell horizontally. |
+| grid | input | x, [y] | Specifies that the input contains multiple sprites, arranged in a grid of a certain cell size. In this mode the _rect_ of each _sprite_ is deduced from the grid. Each _sprite_ automatically advances the current cell horizontally. |
 | grid-cells | input | x, y | As _grid_, but specifies the number of cells instead of their size. When the cells are squares, one dimension is allowed to be _0_, so it is automatically deduced. |
 | grid-offset | input | x, [y],<br/>[r-x], [b-y] | Offsets the grid from the top-left corner by a number of pixels. Optionally the grid's offset from the bottom-right corner can also be specified, which is used when deducing the cell-size using _grid-cells_. |
 | grid-spacing | input | x, [y] | Sets a spacing between the grid cells. |
-| row | input | row | Sets a sprite's vertical offset within a grid (starting with 0). |
-| skip | input | [count] | Skips one or more horizontal grid cells or indices in file sequences (a non-numeric parameter is treated as 1, to allow simple substitutions of _sprite_). |
+| row | input | row | Sets a sprite's row within a grid (starting with 0). |
+| skip | input | [count] | Skips one or more horizontal grid cells or indices in file sequences (a non-numeric parameter is treated as 1, to allow simple substitution of _sprite "id"_). |
 | atlas | input | [pixels] | Specifies that the input contains multiple unaligned sprites, separated by more than a specific number of transparent pixel rows. |
+| max-sprites | input | count | Limits the number of sprites to prevent editors from becoming unresponsive on invalid input (default is 1000). |
 | **sprite** | - | [id] | Adds a new sprite to an input and optionally sets its id. |
 | id | sprite | id | Sets the sprite's id (defaults to `"sprite_{{index}}"`). See list of available [variables](#variables). |
 | span | sprite | columns, rows | Sets the number of grid cells a sprite spans. |
diff --git a/src/Definition.cpp b/src/Definition.cpp
index a7f0711..43a515d 100644
--- a/src/Definition.cpp
+++ b/src/Definition.cpp
@@ -451,7 +451,7 @@ void apply_definition(Definition definition,
       break;
     }
     case Definition::grid:
-      state.grid = check_size(false);
+      state.grid = check_size(true);
       check(state.grid.x > 0 && state.grid.y > 0, "invalid grid");
       break;