diff --git a/README.md b/README.md
index 41159bf9e..03a5fbf5f 100644
--- a/README.md
+++ b/README.md
@@ -139,7 +139,7 @@ Validator                               | Description
 **isJSON(str [, options])**             | check if the string is valid JSON (note: uses JSON.parse).<br/><br/>`options` is an object which defaults to `{ allow_primitives: false }`. If `allow_primitives` is true, the primitives 'true', 'false' and 'null' are accepted as valid JSON values.
 **isJWT(str)**                         | check if the string is valid JWT token.
 **isLatLong(str [, options])**                      | check if the string is a valid latitude-longitude coordinate in the format `lat,long` or `lat, long`.<br/><br/>`options` is an object that defaults to `{ checkDMS: false }`. Pass `checkDMS` as `true` to validate DMS(degrees, minutes, and seconds) latitude-longitude format.
-**isLength(str [, options])**              | check if the string's length falls in a range.<br/><br/>`options` is an object which defaults to `{ min: 0, max: undefined }`. Note: this function takes into account surrogate pairs.
+**isLength(str [, options])**              | check if the string's length falls in a range and equal to any of the integers of the `discreteLengths` array if provided.<br/><br/>`options` is an object which defaults to `{ min: 0, max: undefined, discreteLengths: undefined }`. Note: this function takes into account surrogate pairs.
 **isLicensePlate(str, locale)**     | check if the string matches the format of a country's license plate.<br/><br/>`locale` is one of `['cs-CZ', 'de-DE', 'de-LI', 'en-IN', 'en-SG', 'en-PK', 'es-AR', 'hu-HU', 'pt-BR', 'pt-PT', 'sq-AL', 'sv-SE']` or `'any'`.
 **isLocale(str)**                       | check if the string is a locale.
 **isLowercase(str)**                    | check if the string is lowercase.
diff --git a/src/lib/isDate.js b/src/lib/isDate.js
index ede3e33e6..3a1e4afd2 100644
--- a/src/lib/isDate.js
+++ b/src/lib/isDate.js
@@ -28,6 +28,7 @@ export default function isDate(input, options) {
     options = merge(options, default_date_options);
   }
   if (typeof input === 'string' && isValidFormat(options.format)) {
+    if (options.strictMode && input.length !== options.format.length) return false;
     const formatDelimiter = options.delimiters
       .find(delimiter => options.format.indexOf(delimiter) !== -1);
     const dateDelimiter = options.strictMode
diff --git a/src/lib/isISO6346.js b/src/lib/isISO6346.js
index 0cb657e7c..2c28c1123 100644
--- a/src/lib/isISO6346.js
+++ b/src/lib/isISO6346.js
@@ -27,7 +27,8 @@ export function isISO6346(str) {
       } else sum += str[i] * (2 ** i);
     }
 
-    const checkSumDigit = sum % 11;
+    let checkSumDigit = sum % 11;
+    if (checkSumDigit === 10) checkSumDigit = 0;
     return Number(str[str.length - 1]) === checkSumDigit;
   }
 
diff --git a/src/lib/isLength.js b/src/lib/isLength.js
index 4ef8b83eb..4d5d52546 100644
--- a/src/lib/isLength.js
+++ b/src/lib/isLength.js
@@ -5,6 +5,7 @@ export default function isLength(str, options) {
   assertString(str);
   let min;
   let max;
+
   if (typeof (options) === 'object') {
     min = options.min || 0;
     max = options.max;
@@ -12,8 +13,15 @@ export default function isLength(str, options) {
     min = arguments[1] || 0;
     max = arguments[2];
   }
+
   const presentationSequences = str.match(/(\uFE0F|\uFE0E)/g) || [];
   const surrogatePairs = str.match(/[\uD800-\uDBFF][\uDC00-\uDFFF]/g) || [];
   const len = str.length - presentationSequences.length - surrogatePairs.length;
-  return len >= min && (typeof max === 'undefined' || len <= max);
+  const isInsideRange = len >= min && (typeof max === 'undefined' || len <= max);
+
+  if (isInsideRange && Array.isArray(options?.discreteLengths)) {
+    return options.discreteLengths.some(discreteLen => discreteLen === len);
+  }
+
+  return isInsideRange;
 }
diff --git a/src/lib/isMobilePhone.js b/src/lib/isMobilePhone.js
index 21d840fb5..ad5ff1c93 100644
--- a/src/lib/isMobilePhone.js
+++ b/src/lib/isMobilePhone.js
@@ -41,7 +41,7 @@ const phones = {
   'en-BS': /^(\+?1[-\s]?|0)?\(?242\)?[-\s]?\d{3}[-\s]?\d{4}$/,
   'en-GB': /^(\+?44|0)7[1-9]\d{8}$/,
   'en-GG': /^(\+?44|0)1481\d{6}$/,
-  'en-GH': /^(\+233|0)(20|50|24|54|27|57|26|56|23|28|55|59)\d{7}$/,
+  'en-GH': /^(\+233|0)(20|50|24|54|27|57|26|56|23|53|28|55|59)\d{7}$/,
   'en-GY': /^(\+592|0)6\d{6}$/,
   'en-HK': /^(\+?852[-\s]?)?[456789]\d{3}[-\s]?\d{4}$/,
   'en-MO': /^(\+?853[-\s]?)?[6]\d{3}[-\s]?\d{4}$/,
@@ -70,7 +70,7 @@ const phones = {
   'en-UG': /^(\+?256|0)?[7]\d{8}$/,
   'en-US': /^((\+1|1)?( |-)?)?(\([2-9][0-9]{2}\)|[2-9][0-9]{2})( |-)?([2-9][0-9]{2}( |-)?[0-9]{4})$/,
   'en-ZA': /^(\+?27|0)\d{9}$/,
-  'en-ZM': /^(\+?26)?09[567]\d{7}$/,
+  'en-ZM': /^(\+?26)?0[79][567]\d{7}$/,
   'en-ZW': /^(\+263)[0-9]{9}$/,
   'en-BW': /^(\+?267)?(7[1-8]{1})\d{6}$/,
   'es-AR': /^\+?549(11|[2368]\d)\d{8}$/,
diff --git a/src/lib/isPostalCode.js b/src/lib/isPostalCode.js
index 103656205..cadf39346 100644
--- a/src/lib/isPostalCode.js
+++ b/src/lib/isPostalCode.js
@@ -14,7 +14,7 @@ const patterns = {
   BA: /^([7-8]\d{4}$)/,
   BE: fourDigit,
   BG: fourDigit,
-  BR: /^\d{5}-\d{3}$/,
+  BR: /^\d{5}-?\d{3}$/,
   BY: /^2[1-4]\d{4}$/,
   CA: /^[ABCEGHJKLMNPRSTVXY]\d[ABCEGHJ-NPRSTV-Z][\s\-]?\d[ABCEGHJ-NPRSTV-Z]\d$/i,
   CH: fourDigit,
diff --git a/test/validators.test.js b/test/validators.test.js
index a8611a094..490adfafe 100644
--- a/test/validators.test.js
+++ b/test/validators.test.js
@@ -5394,12 +5394,42 @@ describe('Validators', () => {
       valid: ['abc', 'de', 'a', ''],
       invalid: ['abcd'],
     });
+    test({
+      validator: 'isLength',
+      args: [{ max: 6, discreteLengths: 5 }],
+      valid: ['abcd', 'vfd', 'ff', '', 'k'],
+      invalid: ['abcdefgh', 'hfjdksks'],
+    });
+    test({
+      validator: 'isLength',
+      args: [{ min: 2, max: 6, discreteLengths: 5 }],
+      valid: ['bsa', 'vfvd', 'ff'],
+      invalid: ['', ' ', 'hfskdunvc'],
+    });
+    test({
+      validator: 'isLength',
+      args: [{ min: 1, discreteLengths: 2 }],
+      valid: [' ', 'hello', 'bsa'],
+      invalid: [''],
+    });
     test({
       validator: 'isLength',
       args: [{ max: 0 }],
       valid: [''],
       invalid: ['a', 'ab'],
     });
+    test({
+      validator: 'isLength',
+      args: [{ min: 5, max: 10, discreteLengths: [2, 6, 8, 9] }],
+      valid: ['helloguy', 'shopping', 'validator', 'length'],
+      invalid: ['abcde', 'abcdefg'],
+    });
+    test({
+      validator: 'isLength',
+      args: [{ discreteLengths: '9' }],
+      valid: ['a', 'abcd', 'abcdefghijkl'],
+      invalid: [],
+    });
     test({
       validator: 'isLength',
       valid: ['a', '', 'asds'],
@@ -8023,6 +8053,7 @@ describe('Validators', () => {
           '0502345671',
           '0242345671',
           '0542345671',
+          '0532345671',
           '0272345671',
           '0572345671',
           '0262345671',
@@ -8033,6 +8064,7 @@ describe('Validators', () => {
           '+233502345671',
           '+233242345671',
           '+233542345671',
+          '+233532345671',
           '+233272345671',
           '+233572345671',
           '+233262345671',
@@ -8764,6 +8796,8 @@ describe('Validators', () => {
           '+260966684590',
           '+260976684590',
           '260976684590',
+          '+260779493521',
+          '+260760010936',
         ],
         invalid: [
           '12345',
@@ -8771,6 +8805,7 @@ describe('Validators', () => {
           'Vml2YW11cyBmZXJtZtesting123',
           '010-38238383',
           '966684590',
+          '760010936',
         ],
       },
       {
@@ -12724,6 +12759,9 @@ describe('Validators', () => {
           '39100-000',
           '22040-020',
           '39400-152',
+          '39100000',
+          '22040020',
+          '39400152',
         ],
         invalid: [
           '79800A12',
@@ -13050,6 +13088,55 @@ describe('Validators', () => {
     });
   });
 
+  it('should validate ISO6346 shipping container IDs with checksum digit 10 represented as 0', () => {
+    test({
+      validator: 'isISO6346',
+      valid: [
+        'APZU3789870',
+        'TEMU1002030',
+        'DFSU1704420',
+        'CMAU2221480',
+        'SEGU5060260',
+        'FCIU8939320',
+        'TRHU3495670',
+        'MEDU3871410',
+        'CMAU2184010',
+        'TCLU2265970',
+      ],
+      invalid: [
+        'APZU3789871', // Incorrect check digit
+        'TEMU1002031',
+        'DFSU1704421',
+        'CMAU2221481',
+        'SEGU5060261',
+      ],
+    });
+  });
+  it('should validate ISO6346 shipping container IDs with checksum digit 10 represented as 0', () => {
+    test({
+      validator: 'isFreightContainerID',
+      valid: [
+        'APZU3789870',
+        'TEMU1002030',
+        'DFSU1704420',
+        'CMAU2221480',
+        'SEGU5060260',
+        'FCIU8939320',
+        'TRHU3495670',
+        'MEDU3871410',
+        'CMAU2184010',
+        'TCLU2265970',
+      ],
+      invalid: [
+        'APZU3789871', // Incorrect check digit
+        'TEMU1002031',
+        'DFSU1704421',
+        'CMAU2221481',
+        'SEGU5060261',
+      ],
+    });
+  });
+
   // EU-UK valid numbers sourced from https://ec.europa.eu/taxation_customs/tin/specs/FS-TIN%20Algorithms-Public.docx or constructed by @tplessas.
   it('should validate taxID', () => {
     test({
@@ -13985,6 +14072,7 @@ describe('Validators', () => {
         new Date([2014, 2, 15]),
         new Date('2014-03-15'),
         '29.02.2020',
+        '02.29.2020.20',
         '2024-',
         '2024-05',
         '2024-05-',