diff --git a/messages/envVars.md b/messages/envVars.md
index f46ea1c39..7e076ec1c 100644
--- a/messages/envVars.md
+++ b/messages/envVars.md
@@ -66,6 +66,10 @@ Set to true to disable the auto-update feature of Salesforce CLI. Default value
 
 Set to true to disable polling of your org’s SourceMember object when you run the force:source:push|pull commands. Default value is false.
 
+# sfdxSourceTrackingBatchSize
+
+Number of source-tracked file updates to batch after a deploy or retrieve. The default value is 8,000 (Windows) or 15,000 (Linux/macOS).
+
 # sfdxDisableTelemetry
 
 Set to true to disable Salesforce CLI from collecting usage information, user environment information, and crash reports. Default value is false. Overrides the disableTelemetry configration variable.
diff --git a/package.json b/package.json
index 837b700da..b715b6744 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@salesforce/core",
-  "version": "8.5.1",
+  "version": "8.5.3",
   "description": "Core libraries to interact with SFDX projects, orgs, and APIs.",
   "main": "lib/index",
   "types": "lib/index.d.ts",
diff --git a/src/config/envVars.ts b/src/config/envVars.ts
index 56c2c1cae..7101c9e19 100644
--- a/src/config/envVars.ts
+++ b/src/config/envVars.ts
@@ -31,6 +31,7 @@ export enum EnvironmentVariable {
   'SFDX_DISABLE_AUTOUPDATE' = 'SFDX_DISABLE_AUTOUPDATE',
   'SFDX_AUTOUPDATE_DISABLE' = 'SFDX_AUTOUPDATE_DISABLE',
   'SFDX_DISABLE_SOURCE_MEMBER_POLLING' = 'SFDX_DISABLE_SOURCE_MEMBER_POLLING',
+  'SFDX_SOURCE_TRACKING_BATCH_SIZE' = 'SFDX_SOURCE_TRACKING_BATCH_SIZE',
   'SFDX_DISABLE_TELEMETRY' = 'SFDX_DISABLE_TELEMETRY',
   'SFDX_DNS_TIMEOUT' = 'SFDX_DNS_TIMEOUT',
   'SFDX_DOMAIN_RETRY' = 'SFDX_DOMAIN_RETRY',
@@ -82,6 +83,7 @@ export enum EnvironmentVariable {
   'SF_PROJECT_AUTOUPDATE_DISABLE_FOR_PACKAGE_CREATE' = 'SF_PROJECT_AUTOUPDATE_DISABLE_FOR_PACKAGE_CREATE',
   'SF_PROJECT_AUTOUPDATE_DISABLE_FOR_PACKAGE_VERSION_CREATE' = 'SF_PROJECT_AUTOUPDATE_DISABLE_FOR_PACKAGE_VERSION_CREATE',
   'SF_SOURCE_MEMBER_POLLING_TIMEOUT' = 'SF_SOURCE_MEMBER_POLLING_TIMEOUT',
+  'SF_SOURCE_TRACKING_BATCH_SIZE' = 'SF_SOURCE_TRACKING_BATCH_SIZE',
   'SF_USE_GENERIC_UNIX_KEYCHAIN' = 'SF_USE_GENERIC_UNIX_KEYCHAIN',
   'SF_USE_PROGRESS_BAR' = 'SF_USE_PROGRESS_BAR',
   'SF_LAZY_LOAD_MODULES' = 'SF_LAZY_LOAD_MODULES',
@@ -170,6 +172,10 @@ export const SUPPORTED_ENV_VARS: EnvType = {
     description: getMessage(EnvironmentVariable.SFDX_DISABLE_SOURCE_MEMBER_POLLING),
     synonymOf: EnvironmentVariable.SF_DISABLE_SOURCE_MEMBER_POLLING,
   },
+  [EnvironmentVariable.SFDX_SOURCE_TRACKING_BATCH_SIZE]: {
+    description: getMessage(EnvironmentVariable.SFDX_SOURCE_TRACKING_BATCH_SIZE),
+    synonymOf: EnvironmentVariable.SF_SOURCE_TRACKING_BATCH_SIZE,
+  },
   [EnvironmentVariable.SFDX_DISABLE_TELEMETRY]: {
     description: getMessage(EnvironmentVariable.SFDX_DISABLE_TELEMETRY),
     synonymOf: EnvironmentVariable.SF_DISABLE_TELEMETRY,
@@ -310,6 +316,10 @@ export const SUPPORTED_ENV_VARS: EnvType = {
     description: getMessage(EnvironmentVariable.SF_DISABLE_SOURCE_MEMBER_POLLING),
     synonymOf: null,
   },
+  [EnvironmentVariable.SF_SOURCE_TRACKING_BATCH_SIZE]: {
+    description: getMessage(EnvironmentVariable.SFDX_SOURCE_TRACKING_BATCH_SIZE),
+    synonymOf: null,
+  },
   [EnvironmentVariable.SF_DISABLE_TELEMETRY]: {
     description: getMessage(EnvironmentVariable.SF_DISABLE_TELEMETRY),
     synonymOf: null,