Symfony validator is added to Drupal core, and it contains many constraints.
Supported Constraints of symfony
Symfony packages many of the most commonly-needed constraints:
These are the basic constraints: use them to assert very basic things about the value of properties or the return value of methods on your object.
Type
ExpressionSyntax
Url
UserPassword
NotCompromisedPassword
PasswordStrength
NoSuspiciousCharacters
Timezone
Choice
File
Image
AtLeastOneOf
Sequentially
Compound
When
All
Valid
Cascade
Traverse
Collection
UniqueEntity
EnableAutoMapping
DisableAutoMapping
Constraint which in Bold format is to be supported.
Fixed
3.0
Code
mark this as fixed.
A lot symfony supported. some of them useless in Drupal, some too complex to use.
we can add them later if needed.
Automatically closed - issue fixed for 2 weeks with no activity.