/home/kueuepay/public_html/vendor/symfony/yaml/CHANGELOG.md
CHANGELOG
=========

5.4
---

 * Add new `lint:yaml dirname --exclude=/dirname/foo.yaml --exclude=/dirname/bar.yaml`
   option to exclude one or more specific files from multiple file list
 * Allow negatable for the parse tags option with `--no-parse-tags`

5.3
---

 * Added `github` format support & autodetection to render errors as annotations
   when running the YAML linter command in a Github Action environment.

5.1.0
-----

 * Added support for parsing numbers prefixed with `0o` as octal numbers.
 * Deprecated support for parsing numbers starting with `0` as octal numbers. They will be parsed as strings as of Symfony 6.0. Prefix numbers with `0o`
   so that they are parsed as octal numbers.

   Before:

   ```yaml
   Yaml::parse('072');
   ```

   After:

   ```yaml
   Yaml::parse('0o72');
   ```

 * Added `yaml-lint` binary.
 * Deprecated using the `!php/object` and `!php/const` tags without a value.

5.0.0
-----

 * Removed support for mappings inside multi-line strings.
 * removed support for implicit STDIN usage in the `lint:yaml` command, use `lint:yaml -` (append a dash) instead to make it explicit.

4.4.0
-----

 * Added support for parsing the inline notation spanning multiple lines.
 * Added support to dump `null` as `~` by using the `Yaml::DUMP_NULL_AS_TILDE` flag.
 * deprecated accepting STDIN implicitly when using the `lint:yaml` command, use `lint:yaml -` (append a dash) instead to make it explicit.

4.3.0
-----

 * Using a mapping inside a multi-line string is deprecated and will throw a `ParseException` in 5.0.

4.2.0
-----

 * added support for multiple files or directories in `LintCommand`

4.0.0
-----

 * The behavior of the non-specific tag `!` is changed and now forces
   non-evaluating your values.
 * complex mappings will throw a `ParseException`
 * support for the comma as a group separator for floats has been dropped, use
   the underscore instead
 * support for the `!!php/object` tag has been dropped, use the `!php/object`
   tag instead
 * duplicate mapping keys throw a `ParseException`
 * non-string mapping keys throw a `ParseException`, use the `Yaml::PARSE_KEYS_AS_STRINGS`
   flag to cast them to strings
 * `%` at the beginning of an unquoted string throw a `ParseException`
 * mappings with a colon (`:`) that is not followed by a whitespace throw a
   `ParseException`
 * the `Dumper::setIndentation()` method has been removed
 * being able to pass boolean options to the `Yaml::parse()`, `Yaml::dump()`,
   `Parser::parse()`, and `Dumper::dump()` methods to configure the behavior of
   the parser and dumper is no longer supported, pass bitmask flags instead
 * the constructor arguments of the `Parser` class have been removed
 * the `Inline` class is internal and no longer part of the BC promise
 * removed support for the `!str` tag, use the `!!str` tag instead
 * added support for tagged scalars.

   ```yml
   Yaml::parse('!foo bar', Yaml::PARSE_CUSTOM_TAGS);
   // returns TaggedValue('foo', 'bar');
   ```

3.4.0
-----

 * added support for parsing YAML files using the `Yaml::parseFile()` or `Parser::parseFile()` method

 * the `Dumper`, `Parser`, and `Yaml` classes are marked as final

 * Deprecated the `!php/object:` tag which will be replaced by the
   `!php/object` tag (without the colon) in 4.0.

 * Deprecated the `!php/const:` tag which will be replaced by the
   `!php/const` tag (without the colon) in 4.0.

 * Support for the `!str` tag is deprecated, use the `!!str` tag instead.

 * Deprecated using the non-specific tag `!` as its behavior will change in 4.0.
   It will force non-evaluating your values in 4.0. Use plain integers or `!!float` instead.

3.3.0
-----

 * Starting an unquoted string with a question mark followed by a space is
   deprecated and will throw a `ParseException` in Symfony 4.0.

 * Deprecated support for implicitly parsing non-string mapping keys as strings.
   Mapping keys that are no strings will lead to a `ParseException` in Symfony
   4.0. Use quotes to opt-in for keys to be parsed as strings.

   Before:

   ```php
   $yaml = <<<YAML
   null: null key
   true: boolean true
   2.0: float key
   YAML;

   Yaml::parse($yaml);
   ```

   After:

   ```php

   $yaml = <<<YAML
   "null": null key
   "true": boolean true
   "2.0": float key
   YAML;

   Yaml::parse($yaml);
   ```

 * Omitted mapping values will be parsed as `null`.

 * Omitting the key of a mapping is deprecated and will throw a `ParseException` in Symfony 4.0.

 * Added support for dumping empty PHP arrays as YAML sequences:

   ```php
   Yaml::dump([], 0, 0, Yaml::DUMP_EMPTY_ARRAY_AS_SEQUENCE);
   ```

3.2.0
-----

 * Mappings with a colon (`:`) that is not followed by a whitespace are deprecated
   when the mapping key is not quoted and will lead to a `ParseException` in
   Symfony 4.0 (e.g. `foo:bar` must be `foo: bar`).

 * Added support for parsing PHP constants:

   ```php
   Yaml::parse('!php/const:PHP_INT_MAX', Yaml::PARSE_CONSTANT);
   ```

 * Support for silently ignoring duplicate mapping keys in YAML has been
   deprecated and will lead to a `ParseException` in Symfony 4.0.

3.1.0
-----

 * Added support to dump `stdClass` and `ArrayAccess` objects as YAML mappings
   through the `Yaml::DUMP_OBJECT_AS_MAP` flag.

 * Strings that are not UTF-8 encoded will be dumped as base64 encoded binary
   data.

 * Added support for dumping multi line strings as literal blocks.

 * Added support for parsing base64 encoded binary data when they are tagged
   with the `!!binary` tag.

 * Added support for parsing timestamps as `\DateTime` objects:

   ```php
   Yaml::parse('2001-12-15 21:59:43.10 -5', Yaml::PARSE_DATETIME);
   ```

 * `\DateTime` and `\DateTimeImmutable` objects are dumped as YAML timestamps.

 * Deprecated usage of `%` at the beginning of an unquoted string.

 * Added support for customizing the YAML parser behavior through an optional bit field:

   ```php
   Yaml::parse('{ "foo": "bar", "fiz": "cat" }', Yaml::PARSE_EXCEPTION_ON_INVALID_TYPE | Yaml::PARSE_OBJECT | Yaml::PARSE_OBJECT_FOR_MAP);
   ```

 * Added support for customizing the dumped YAML string through an optional bit field:

   ```php
   Yaml::dump(['foo' => new A(), 'bar' => 1], 0, 0, Yaml::DUMP_EXCEPTION_ON_INVALID_TYPE | Yaml::DUMP_OBJECT);
   ```

3.0.0
-----

 * Yaml::parse() now throws an exception when a blackslash is not escaped
   in double-quoted strings

2.8.0
-----

 * Deprecated usage of a colon in an unquoted mapping value
 * Deprecated usage of @, \`, | and > at the beginning of an unquoted string
 * When surrounding strings with double-quotes, you must now escape `\` characters. Not
   escaping those characters (when surrounded by double-quotes) is deprecated.

   Before:

   ```yml
   class: "Foo\Var"
   ```

   After:

   ```yml
   class: "Foo\\Var"
   ```

2.1.0
-----

 * Yaml::parse() does not evaluate loaded files as PHP files by default
   anymore (call Yaml::enablePhpParsing() to get back the old behavior)
Journal Details
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Enhancing Payment Security: The Role of Encryption and Tokenization in Digital Transactions

As digital transactions proliferate, ensuring robust payment security is more critical than ever. Two foundational technologies that are pivotal in this effort are encryption and tokenization.
Encryption is a process that transforms data into a secure format, known as ciphertext, which can only be deciphered using a specific decryption key. This means that even if data is intercepted during transmission, it remains unreadable and protected from unauthorized access. Encryption is essential in safeguarding sensitive payment information, such as credit card details and personal data, during online transactions.
Tokenization, on the other hand, involves substituting sensitive data with unique identifiers or "tokens." These tokens serve as placeholders and have no value outside of the specific transaction context. If intercepted, tokens are meaningless and cannot be used to access the original sensitive data. This method significantly reduces the risk of fraud and data breaches, as the actual payment information is not stored or transmitted.
Together, encryption and tokenization form a powerful security framework. Encryption ensures that data is protected during transmission, while tokenization minimizes the risk of exposing sensitive information by replacing it with secure, non-sensitive tokens.
These technologies are integral to modern payment platforms, providing a robust defense against cyber threats. By implementing advanced encryption and tokenization techniques, businesses can enhance the security of digital transactions, ensuring that users' financial and personal information remains safe. This comprehensive approach not only builds user trust but also fortifies the overall security infrastructure of digital payment systems. As cyber threats evolve, the continued advancement of encryption and tokenization will be crucial in maintaining secure and reliable payment processes.

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