diff --git a/CHANGELOG.md b/CHANGELOG.md
index 55aa92483..6c62620da 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,7 +6,9 @@ If a change is missing, it is likely simple or was forgotten about when this log
 
 Feel free to PR corrections to this file.
 
-## [Unreleased][Unreleased]
+<!-- ## [Unreleased][Unreleased]-->
+
+## [0.5.3][0.5.3]
 
 ### Known-Issues
 - [Possibly fixed: See #168](https://github.com/TownyAdvanced/FlagWar/pull/168) &mdash; Impossible to attack plots that have
@@ -359,7 +361,8 @@ Scale to 2, use "Bankers' Rounding" (HALF_EVEN)
 <!---------------------------->
 
 <!-- Links to Tagged Changes -->
-[Unreleased]: https://github.com/TownyAdvanced/FlagWar/compare/0.5.2...HEAD
+[Unreleased]: https://github.com/TownyAdvanced/FlagWar/compare/0.5.3...HEAD
+[0.5.3]: https://github.com/TownyAdvanced/FlagWar/compare/0.5.2...0.5.3
 [0.5.2]: https://github.com/TownyAdvanced/FlagWar/compare/0.5.1b...0.5.2
 [0.5.1]: https://github.com/TownyAdvanced/FlagWar/compare/0.5.0...0.5.1b
 [0.5.0]: https://github.com/TownyAdvanced/FlagWar/compare/0.4.0...0.5.0
diff --git a/README.md b/README.md
index 13432a6a3..cf1d70f8e 100644
--- a/README.md
+++ b/README.md
@@ -82,6 +82,7 @@ Administrator Resources
 
 | FlagWar Release | 📅 Released On   | Requirements                                                                |
 | :-------------: | :--------------: | :-------------------------------------------------------------------------: |
+| [v0.5.3][0.5.3] | October 27, 2021 | Towny (_0.97.3.0_+), Bukkit API-based&ast; server (_1.17.1_, _1.8.2_, _1.19.2_)      |
 | [v0.5.2][0.5.2] | October 27, 2021 | Towny (_0.97.3.0_+), Bukkit API-based&ast; server (_1.16.5_, _1.17.1_)      |
 | [v0.5.1][0.5.1] | August 12, 2021  | Towny (_0.97.2.0 - 0.97.2.14_), Bukkit API-based&ast; server (_1.16.5_, _1.17.1_)     |
 | _Pre-History_   | _2011 - 2021_    | Deprecated & Removed in Towny versions 0.97.0.0 and 0.97.1.0, respectively. | 
@@ -89,6 +90,7 @@ Administrator Resources
 > FlagWar has adopted the use of Paper as an API provider. Spigot should however still be viable. Please
 > submit a ticket if you experience any issues.
 
+[0.5.3]: https://github.com/TownyAdvanced/FlagWar/releases/tag/0.5.3 "FlagWar Release 0.5.3"
 [0.5.2]: https://github.com/TownyAdvanced/FlagWar/releases/tag/0.5.2 "FlagWar Release 0.5.2"
 [0.5.1]: https://github.com/TownyAdvanced/FlagWar/releases/tag/0.5.1b "FlagWar Release 0.5.1b"
 
@@ -96,7 +98,7 @@ Administrator Resources
 
 <img align=right src="https://user-images.githubusercontent.com/879756/65964779-3a067200-e423-11e9-9928-938b976af2c2.gif" height="155">
 
-All Release builds and Development builds have been made available here on GitHub's [Releases][releases] page.  
+All Release builds and most Development builds have been made available here on GitHub's [Releases][releases] page.  
 We encourage server admins to "watch" FlagWar on GitHub in order to receive update notifications.  
 Just click the watch button in the upper right and select "Releases Only".
 
diff --git a/docs/issue84.md b/docs/issue84.md
deleted file mode 100644
index b94cc4484..000000000
--- a/docs/issue84.md
+++ /dev/null
@@ -1,43 +0,0 @@
-# Working Doc: Issue 84
-
-<!-- TODO: Delete this file before merge -->
-## Impossible to attack a plot that has blocks placed at world build-height limit.
-
-- [GitHub](https://github.com/TownyAdvanced/FlagWar/issues/84)
-
-### Summary
-
-If an attacking player is attempting to flag a plot, and a ceiling exists
-above the flag location, the flag will not be placeable. Some defending
-players will take advantage of this fact by placing a plot-wide ceiling
-at a world's maximum build height.
-
-This issue also extends to worlds with natural ceilings such as worlds
-using the default Nether generator settings.
-
-This issue stems from design decisions as old as the general-audience
-release of the game. As such, this issue is a natural bug. It is also
-classified as a blocker for future official FlagWar releases due to its
-exploit-ability.
-
-### Proposed Solution
-
-This issue should be easily addressed by applying a few hard-coded rules
-to when and where a war-flag may be placed.
-
-- [x] Allow placing flags under ceilings. (Required)
-  - [x] Traditional check: In a world without a natural ceiling, and the highest block is within 5 meters of max height.
-  - [x] Add a basic height check:
-    - [x] (submersion) checks for if a flag base has a liquid up to 4 meters above it
-    - [x] (general space) check same vertical space for any non-empty, non-liquid blocks
-  - [x] Add sea-level (minus depth) check
-    - Flag base must be at or above a world's sea-level, minus modifier.
-    - Default modifier: 12 meters
-
-- [x] Rework Coordinate Broadcasting
-  
-  - [ ] ~~Specific Audience Options (_Config_)~~
-    - This specific plan was scrapped.
-  - [x] Location Accuracy (_Config_)
-    - towny (_Towny Coord, default_)
-    - precise (_Minecraft's X,Y,Z_)
diff --git a/jitpack.yml b/jitpack.yml
index 903e87ef3..e4db44d37 100644
--- a/jitpack.yml
+++ b/jitpack.yml
@@ -4,7 +4,7 @@
 before_install:
     - source "$HOME/.sdkman/bin/sdkman-init.sh"
     - sdk update
-    - sdk install java 17.0.3-ms
-    - sdk use java 17.0.3-ms
+    - sdk install java 17.0.4.1-tem
+    - sdk use java 17.0.4.1-tem
     - sdk install maven 3.8.6
     - sdk use maven 3.8.6
diff --git a/pom.xml b/pom.xml
index 52a3aa22b..ca727a0e1 100644
--- a/pom.xml
+++ b/pom.xml
@@ -7,12 +7,12 @@
     <groupId>io.github.townyadvanced.flagwar</groupId>
     <artifactId>FlagWar</artifactId>
     <packaging>jar</packaging>
-    <version>0.5.3-SNAPSHOT</version>
+    <version>0.5.3</version>
     <description>An OG war system for TownyAdvanced. Celebrating a decade of Flag-based Towny Warfare.</description>
 
     <properties>
         <java.version>16</java.version>
-        <project.bukkitAPIVersion>1.16</project.bukkitAPIVersion>
+        <project.bukkitAPIVersion>1.17</project.bukkitAPIVersion>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     </properties>