diff --git a/CHANGELOG.md b/CHANGELOG.md
index d46480ac5b9..ddcf69743fe 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -792,10 +792,20 @@ All these changes only affect Renewal. Pre-renewal is unchanged.
 
 - The `is_quest` argument to `pc->gainexp()` has been changed to a `flags` bitmask enum, in order to allow expansion to different flags. (#3279)
 
-## [v2024.08] `August 2024`
+## [v2024.09] `September 2024`
 
 ### Added
 
+- Implemented the script command `getunitparam()` to query values defined in `unit_parameters_db.conf`, and the related `UNIT_PARAM_*` constants. See the `script_commands.txt` documentation for usage details. (#3323)
+- Added validation of the name length for configuration entries added through the HPM `addBattleConf()`, `addLoginConf()`, `addCharConf()`, `addCharInterConf()`, `addLogConf()`, `addScriptConf()` methods, to prevent silent truncation. (#3324)
+
+### Fixed
+
+- Fixed an issue causing item-granted skills that were overriding an existing skill level, not to be correctly cleared when unequipping the item. (#3322)
+- Fixed previously plagiarized skills re-appearing on subsequent logins due to the related script variables not getting cleared properly. (#3325)
+
+## [v2024.08] `August 2024`
+
 ### Changed
 
 - Converted packets `CHARLOGIN_ONLINE_ACCOUNTS`, `MAPCHAR_AUTH_REQ`, `CHARLOGIN_SET_ACCOUNT_ONLINE` to the struct format. (#3304, #3312, #3314)
@@ -3930,6 +3940,7 @@ Note: everything included in this release is part of PR #3198 which consists of
 - New versioning scheme and project changelogs/release notes (#1853)
 
 [Unreleased]: https://github.com/HerculesWS/Hercules/compare/stable...master
+[v2024.09]: https://github.com/HerculesWS/Hercules/compare/v2024.08...v2024.09
 [v2024.08]: https://github.com/HerculesWS/Hercules/compare/v2024.06...v2024.08
 [v2024.06]: https://github.com/HerculesWS/Hercules/compare/v2024.05...v2024.06
 [v2024.05]: https://github.com/HerculesWS/Hercules/compare/v2024.04...v2024.05
diff --git a/doc/constants_pre-re.md b/doc/constants_pre-re.md
index 25ab8f2ae30..7c46aba797a 100644
--- a/doc/constants_pre-re.md
+++ b/doc/constants_pre-re.md
@@ -4880,7 +4880,7 @@
 ### Server defines
 
 - `PACKETVER`: 20190530
-- `HERCULES_VERSION`: 202408000
+- `HERCULES_VERSION`: 202409000
 - `MAX_LEVEL`: 175
 - `MAX_STORAGE`: 600
 - `MAX_GUILD_STORAGE`: 500
@@ -5870,6 +5870,14 @@
 - `HOMINFO_RENAME`: 5
 - `HOMINFO_LEVEL`: 6
 
+### getunitparam param-types
+
+- `UNIT_PARAM_NAME`: 0
+- `UNIT_PARAM_NATHEAL_WEIGHT_RATE`: 1
+- `UNIT_PARAM_MAX_ASPD`: 2
+- `UNIT_PARAM_MAX_HP`: 3
+- `UNIT_PARAM_MAX_STATS`: 4
+
 ### Renewal
 
 - `RENEWAL`: 0
diff --git a/doc/constants_re.md b/doc/constants_re.md
index 40dc94ff76c..7f116999fb3 100644
--- a/doc/constants_re.md
+++ b/doc/constants_re.md
@@ -4878,7 +4878,7 @@
 ### Server defines
 
 - `PACKETVER`: 20190530
-- `HERCULES_VERSION`: 202408000
+- `HERCULES_VERSION`: 202409000
 - `MAX_LEVEL`: 175
 - `MAX_STORAGE`: 600
 - `MAX_GUILD_STORAGE`: 500
@@ -5868,6 +5868,14 @@
 - `HOMINFO_RENAME`: 5
 - `HOMINFO_LEVEL`: 6
 
+### getunitparam param-types
+
+- `UNIT_PARAM_NAME`: 0
+- `UNIT_PARAM_NATHEAL_WEIGHT_RATE`: 1
+- `UNIT_PARAM_MAX_ASPD`: 2
+- `UNIT_PARAM_MAX_HP`: 3
+- `UNIT_PARAM_MAX_STATS`: 4
+
 ### Renewal
 
 - `RENEWAL`: 1
diff --git a/doc/script_commands.txt b/doc/script_commands.txt
index 1c4bb8aa3ab..939ea863f4f 100644
--- a/doc/script_commands.txt
+++ b/doc/script_commands.txt
@@ -3101,6 +3101,37 @@ Examples:
 
 ---------------------------------------
 
+*getunitparam(<param type>{, <class>{, <maxlv array>, <value array>}})
+
+Thi will return the requested parameter's value or fill the required arrays in
+the case of UNIT_PARAM_MAX_HP.
+
+<param type>:
+- UNIT_PARAM_NAME                       ^= name of unit_parameters_db.conf entry used by class.
+- UNIT_PARAM_NATHEAL_WEIGHT_RATE        ^= NaturalHealWeightRate value
+- UNIT_PARAM_MAX_ASPD                   ^= MaxASPD
+- UNIT_PARAM_MAX_HP                     ^= MaxHP
+- UNIT_PARAM_MAX_STATS                  ^= MaxStats
+
+<class> can be -1 if attached players class is desired, such as in the case of UNIT_PARAM_MAX_HP,
+where <class> is mandatory.
+
+Examples:
+
+// Outputs the possible maximum ASPD of attached player.
+	mesf("MAX_ASPD: %d", getunitparam(UNIT_PARAM_MAX_ASPD));
+
+// Outputs the possible maximum stats of Job_Baby.
+	mesf("MAX_STATS: %d", getunitparam(UNIT_PARAM_MAX_STATS, Job_Baby));
+
+// Saves the entries for MAXHP per level ranges of JOB_SUPER_NOVICE into the given arrays and prints them.
+	.@count = getunitparam(UNIT_PARAM_MAX_ASPD, JOB_SUPER_NOVICE, .@max_lv, .@max_hp);
+	for (.@i = 0; .@i < .@count; ++.@i) {
+		mesf("max_lv: %d, max_hp: %d", .@max_lv[.@i], .@max_hp[.@i]);
+	}
+
+---------------------------------------
+
 *sit({"<character name>"})
 *stand({"<character name>"})
 
diff --git a/src/common/HPM.c b/src/common/HPM.c
index 9608eec218e..4aa80c0ec38 100644
--- a/src/common/HPM.c
+++ b/src/common/HPM.c
@@ -451,6 +451,11 @@ static bool hplugins_addconf(unsigned int pluginID, enum HPluginConfType type, c
 		return false;
 	}
 
+	if (strnlen(name, HPM_ADDCONF_LENGTH) >= HPM_ADDCONF_LENGTH) {
+		ShowError("HPM->addConf:%s: config '%s' name/path is too long. Maximum is %d characters (see #define HPM_ADDCONF_LENGTH). Skipping it.\n", HPM->pid2name(pluginID), name, HPM_ADDCONF_LENGTH - 1);
+		return false;
+	}
+
 	ARR_FIND(0, VECTOR_LENGTH(HPM->config_listeners[type]), i, strcmpi(name, VECTOR_INDEX(HPM->config_listeners[type], i).key) == 0);
 	if (i != VECTOR_LENGTH(HPM->config_listeners[type])) {
 		ShowError("HPM->addConf:%s: duplicate '%s', already in use by '%s'!",
diff --git a/src/common/HPMi.h b/src/common/HPMi.h
index d7083bbf8ff..a44984495f2 100644
--- a/src/common/HPMi.h
+++ b/src/common/HPMi.h
@@ -35,6 +35,8 @@ struct map_session_data;
 struct hplugin_data_store;
 
 #define HPM_VERSION "1.2"
+
+// Maximum length of the configuration path for configs added with add*Conf
 #define HPM_ADDCONF_LENGTH 40
 
 struct hplugin_info {
diff --git a/src/config/core.h b/src/config/core.h
index 657f29bbe65..83bd05a1c97 100644
--- a/src/config/core.h
+++ b/src/config/core.h
@@ -22,7 +22,7 @@
 #define CONFIG_CORE_H
 
 /// Hercules version. From tag vYYYY.MM(+PPP) -> YYYYMMPPP
-#define HERCULES_VERSION 202408000
+#define HERCULES_VERSION 202409000
 
 /// Max number of items on @autolootid list
 #define AUTOLOOTITEM_SIZE 10
diff --git a/src/map/pc.c b/src/map/pc.c
index f10b8282e98..65fe219b491 100644
--- a/src/map/pc.c
+++ b/src/map/pc.c
@@ -1659,7 +1659,8 @@ static void pc_calc_skilltree_clear(struct map_session_data *sd)
 
 	for (i = 0; i < MAX_SKILL_DB; i++) {
 		if (sd->status.skill[i].flag == SKILL_FLAG_PLAGIARIZED || sd->status.skill[i].flag == SKILL_FLAG_PERM_GRANTED
-		    || sd->status.skill[i].id == sd->cloneskill_id || sd->status.skill[i].id == sd->reproduceskill_id) //Don't touch these
+		    || (sd->cloneskill_id != 0 && sd->status.skill[i].id == sd->cloneskill_id)
+			|| (sd->reproduceskill_id != 0 && sd->status.skill[i].id == sd->reproduceskill_id)) //Don't touch these
 			continue;
 		sd->status.skill[i].id = 0; //First clear skills.
 		/* permanent skills that must be re-checked */
@@ -1695,10 +1696,17 @@ static int pc_calc_skilltree(struct map_session_data *sd)
 	pc->calc_skilltree_clear(sd);
 
 	for (int i = 0; i < MAX_SKILL_DB; i++) {
-		if ((sd->status.skill[i].flag >= SKILL_FLAG_REPLACED_LV_0 && sd->status.skill[i].id != sd->cloneskill_id && sd->status.skill[i].id != sd->reproduceskill_id)
-		    || sd->status.skill[i].flag == SKILL_FLAG_TEMPORARY) {
+		if (sd->status.skill[i].flag >= SKILL_FLAG_REPLACED_LV_0) {
+			bool is_cloneskill = sd->cloneskill_id != 0 && sd->status.skill[i].id == sd->cloneskill_id;
+			bool is_reproduceskill = sd->reproduceskill_id != 0 && sd->status.skill[i].id == sd->reproduceskill_id;
+			if (is_cloneskill || is_reproduceskill)
+				continue; // Plagiarized and Reproduce Skills are kept.
+
 			// Restore original level of skills after deleting earned skills.
-			sd->status.skill[i].lv = (sd->status.skill[i].flag == SKILL_FLAG_TEMPORARY) ? 0 : sd->status.skill[i].flag - SKILL_FLAG_REPLACED_LV_0;
+			sd->status.skill[i].lv = sd->status.skill[i].flag - SKILL_FLAG_REPLACED_LV_0;
+			sd->status.skill[i].flag = SKILL_FLAG_PERMANENT;
+		} else if (sd->status.skill[i].flag == SKILL_FLAG_TEMPORARY) {
+			sd->status.skill[i].lv = 0;
 			sd->status.skill[i].flag = SKILL_FLAG_PERMANENT;
 		}
 	}
diff --git a/src/map/script.c b/src/map/script.c
index 0024462c2a7..359299bc31e 100644
--- a/src/map/script.c
+++ b/src/map/script.c
@@ -28628,6 +28628,120 @@ static BUILDIN(mestipbox)
 	return true;
 }
 
+
+/**
+ * Returns a units <parameter>'s values
+ *
+ * NOTE: UNIT_PARAM_MAX_HP needs two arrays.
+ *
+ * getunitparam(<param>{, <class id>{, <maxlv array>, <value array>}})
+ */
+static BUILDIN(getunitparam)
+{
+	int class = -1;
+	if (script_hasdata(st, 3)) {
+		class = script_getnum(st, 3);
+		if (class != -1) {
+			if (!pc->db_checkid(class)) {
+				ShowError("buildin_getunitparam: invalid class (%d)\n", class);
+				st->state = END;
+				return false;
+			}
+			class = pc->class2idx(class);
+		}
+	}
+
+	struct map_session_data *sd = NULL;
+	if (class == -1) {
+		sd = script_rid2sd(st);
+		if (sd == NULL) {
+			ShowError("buildin_getunitparam: No player attached, but class == -1.\n");
+			return false;
+		}
+		class = pc->class2idx(sd->status.class);
+	}
+
+	struct s_unit_params *entry = status->dbs->unit_params[class];
+	int param = script_getnum(st, 2);
+	switch (param) {
+	case UNIT_PARAM_NAME:
+		script_pushconststr(st, entry->name);
+		break;
+	case UNIT_PARAM_NATHEAL_WEIGHT_RATE:
+		script_pushint(st, entry->natural_heal_weight_rate);
+		break;
+	case UNIT_PARAM_MAX_ASPD:
+		script_pushint(st, (2000 - entry->max_aspd) / 10); // max_aspd is actually min_amotion :)
+		break;
+	case UNIT_PARAM_MAX_HP: {
+		if (!script_hasdata(st, 4) || !script_hasdata(st, 5)) {
+			ShowError("buildin_getunitparam: UNIT_PARAM_MAXP_HP requires 4 parameters: <param>, <class id>, <maxlv array>, <value array>\n");
+			st->state = END;
+			return false;
+		}
+
+		struct script_data *maxhp_maxlvls = script_getdata(st, 4);
+		struct script_data *maxhp_values = script_getdata(st, 5);
+		if (!data_isreference(maxhp_maxlvls) || reference_toconstant(maxhp_maxlvls)) {
+			ShowError("buildin_getunitparam: <maxlv array> argument must be reference and not a reference to constant\n");
+			script->reportdata(maxhp_maxlvls);
+			st->state = END;
+			return false;
+		}
+		if (!data_isreference(maxhp_values) || reference_toconstant(maxhp_values)) {
+			ShowError("buildin_getunitparam: <value array> argument must be reference and not a reference to constant\n");
+			script->reportdata(maxhp_values);
+			st->state = END;
+			return false;
+		}
+
+		const char *maxhp_maxlvls_varname = reference_getname(maxhp_maxlvls);
+		const char *maxhp_values_varname = reference_getname(maxhp_values);
+		if (!is_int_variable(maxhp_maxlvls_varname)) {
+			ShowError("buildin_getunitparam: <maxlv array> argument must be of integer type\n");
+			script->reportdata(maxhp_maxlvls);
+			st->state = END;
+			return false;
+		}
+		if (!is_int_variable(maxhp_values_varname)) {
+			ShowError("buildin_getunitparam: <value array> argument must be of integer type\n");
+			script->reportdata(maxhp_values);
+			st->state = END;
+			return false;
+		}
+
+		if (not_server_variable(*maxhp_maxlvls_varname) || not_server_variable(*maxhp_values_varname)) {
+			if (sd == NULL) {
+				sd = script->rid2sd(st);
+				if (sd == NULL)
+					return false; // player variable but no player attached
+			}
+		}
+
+		int varid1 = reference_getid(maxhp_maxlvls);
+		int varid2 = reference_getid(maxhp_values);
+		int count = entry->maxhp_size;
+		for (int i = 0; i < count; i++) {
+			script->set_reg(st, sd, reference_uid(varid1, i), maxhp_maxlvls_varname, (const void *)h64BPTRSIZE(entry->maxhp[i].max_level),
+			                reference_getref(maxhp_maxlvls));
+			script->set_reg(st, sd, reference_uid(varid2, i), maxhp_values_varname, (const void *)h64BPTRSIZE(entry->maxhp[i].value),
+			                reference_getref(maxhp_values));
+		}
+		script_pushint(st, count);
+		break;
+	}
+	case UNIT_PARAM_MAX_STATS:
+		script_pushint(st, entry->max_stats);
+		break;
+	default:
+		ShowError("buildin_getunitparam: Received invalid param: %d\n", param);
+		st->state = END;
+		return false;
+	}
+
+	return true;
+}
+
 /**
  * Adds a built-in script function.
  *
@@ -29507,6 +29621,7 @@ static void script_parse_builtin(void)
 
 		BUILDIN_DEF(mesurl, "ss??"),
 		BUILDIN_DEF(mestipbox, "si"),
+		BUILDIN_DEF(getunitparam, "i???"),
 	};
 	int i, len = ARRAYLENGTH(BUILDIN);
 	RECREATE(script->buildin, char *, script->buildin_count + len); // Pre-alloc to speed up
@@ -30490,6 +30605,13 @@ static void script_hardcoded_constants(void)
 	script->set_constant("HOMINFO_RENAME", HOMINFO_RENAME, false, false);
 	script->set_constant("HOMINFO_LEVEL", HOMINFO_LEVEL, false, false);
 
+	script->constdb_comment("getunitparam param-types");
+	script->set_constant("UNIT_PARAM_NAME", UNIT_PARAM_NAME, false, false);
+	script->set_constant("UNIT_PARAM_NATHEAL_WEIGHT_RATE", UNIT_PARAM_NATHEAL_WEIGHT_RATE, false, false);
+	script->set_constant("UNIT_PARAM_MAX_ASPD", UNIT_PARAM_MAX_ASPD, false, false);
+	script->set_constant("UNIT_PARAM_MAX_HP", UNIT_PARAM_MAX_HP, false, false);
+	script->set_constant("UNIT_PARAM_MAX_STATS", UNIT_PARAM_MAX_STATS, false, false);
+
 	script->constdb_comment("autospell db constants");
 	script->set_constant2("HALF_AUTOSPELL_LEVEL", HALF_AUTOSPELL_LEVEL, false, false);
 
diff --git a/src/map/skill.c b/src/map/skill.c
index 8e022cc884a..f8a8feb7a1f 100644
--- a/src/map/skill.c
+++ b/src/map/skill.c
@@ -3704,12 +3704,13 @@ static int skill_attack(int attack_type, struct block_list *src, struct block_li
 		switch(can_copy(tsd, copy_skill)) {
 		case 1: // Plagiarism
 		{
-			pc->clear_existing_cloneskill(tsd, false);
-
 			lv = min(skill_lv, pc->checkskill(tsd, RG_PLAGIARISM));
-			if (learned_lv > lv)
+			if (learned_lv > lv) {
+				pc->clear_existing_cloneskill(tsd, true);
 				break; // [Aegis] can't overwrite skill of higher level, but will still remove previously copied skill.
+			}
 
+			pc->clear_existing_cloneskill(tsd, false);
 			tsd->cloneskill_id = copy_skill;
 			pc_setglobalreg(tsd, script->add_variable("CLONE_SKILL"), copy_skill);
 			pc_setglobalreg(tsd, script->add_variable("CLONE_SKILL_LV"), lv);
@@ -3726,12 +3727,13 @@ static int skill_attack(int attack_type, struct block_list *src, struct block_li
 		case 2: // Reproduce
 		{
 			lv = sc ? sc->data[SC__REPRODUCE]->val1 : 1;
-			pc->clear_existing_reproduceskill(tsd, false);
-
 			lv = min(lv, skill->get_max(copy_skill));
-			if (learned_lv > lv)
+			if (learned_lv > lv) {
+				pc->clear_existing_reproduceskill(tsd, true);
 				break; // unconfirmed, but probably the same behavior as for RG_PLAGIARISM
+			}
 
+			pc->clear_existing_reproduceskill(tsd, false);
 			tsd->reproduceskill_id = copy_skill;
 			pc_setglobalreg(tsd, script->add_variable("REPRODUCE_SKILL"), copy_skill);
 			pc_setglobalreg(tsd, script->add_variable("REPRODUCE_SKILL_LV"), lv);
diff --git a/src/map/status.h b/src/map/status.h
index 9d1f1687255..c491fb4a641 100644
--- a/src/map/status.h
+++ b/src/map/status.h
@@ -1351,6 +1351,14 @@ struct s_maxhp_entry {
 	int value; ///< The actual max hp value
 };
 
+enum e_unit_params {
+	UNIT_PARAM_NAME,
+	UNIT_PARAM_NATHEAL_WEIGHT_RATE,
+	UNIT_PARAM_MAX_ASPD,
+	UNIT_PARAM_MAX_HP,
+	UNIT_PARAM_MAX_STATS,
+};
+
 struct s_unit_params {
 	char name[SCRIPT_VARNAME_LENGTH]; ///< group name as defined in conf