• Use daemon threads in FileWatcher to enable clean shutdown.

• Add withPrintFn option to the config builder to support logging config with a user defined function

• Add better yaml errors when invalid file #354
• Fix formatting for secrets which contain new lines #363
• Moves GcpSecretManagerPreprocessor from azure to gcp package #362

• Added BooleanArrayDecoder
• Updated to latest SnakeYML version to avoid CVE

• Added support for ByteArray.

• TOML now supports heterogenous arrays.

• Add prefix option to EnvironmentVariablesPropertySource which is then stripped from env vars before resolution is applied.

• Correct conversion between bytes and other units #347

• Fixed NPE in reporter with empty sources #345
• Do not add mask to prefix if string is less than prefix length

• Avoid reporting remote keys used in multiple places.

• Add fallback version of Environment.forEnvVar
• Provide Environment to decoders and preprocessors through the DecoderContext.

• Added Environment abstraction
• Added XdgConfigPropertySource for loading config from $XDG_CONFIG_HOME
• Added support for GCP Secrets Manager. To use import hoplite-gcp and set your keys to be gcpsm://mykey.
• Added support for AWS Secrets Manager using Amazon's SDK version 2. The syntax is the same, but import hoplite-aws2 instead of hoplite-aws.
• Added CascadeMode to control how config should cascade through files.
• Added decoder for java.util.Locale
• PrefixObfuscator can now be configured by prefix length and mask.
• Added remote-lookup details to the report to show keys used from AWS Secrets Manager, GCP cloud etc.
• Support squashing arrays into a comma delimited list by setting flattenArraysToString on the config builder. #339
• Support map lookup in AWS preprocessors #341
• Fix sealed subclass picking #338

Breaking Changes

These breaking changes are to advanced customization features. Most users will need to change no code.

• ReporterBuilder has been removed - specify the obfuscator and secrets policy directly on the ConfigLoaderBuilder.
• SecretsPolicy interface has been changed to directly use Nodes and not just Paths.
• The Preprocessor interface has changed to have an extra parameter named DecoderContext.

• Fixed sealed class ordering in Kotlin 1.7.x #331
• Unable to decode Double and Float from a whole number #330

• Fixed snake/kebab case keys that end with a number #238

• Added an automatically registered EnvironmentVariablesOverridePropertySource which allows for environment variables of the form config.override.foo to be automatically resolved as foo.

• Added a AzureKeyVaultPreprocessor to support azurekeyvault://key syntax for fetching secrets from Azure Key Vault. Requires the hoplite-azure module.
• Added a VaultSecretPreprocessor to support vault://key syntax for fetching secrets from a Hashicorp Valut instance. Requires the hoplite-vault module.

• Fix for TOML keys containing dots are not decoded properly in maps #322

• Fix for unused config false-positive when using strict mode and maps #320

• Fixed anchors in yaml when using multiple files #307
• Added subscribe to ReloadableConfig

• Added Base64 type and decoder
• Added hoplite-micrometer-datadog module
• Added hoplite-micrometer-prometheus module
• Added hoplite-micrometer-statsd module
• Updated AWS secrets preprocessor to support awssm://key syntax
• Updated Consul preprocessor to support consul://key syntax
• Added withPreprocessingIterations to support repeated applications of preprocessors
• Added PropsPropertySource to programmatically provide a Properties based source.

• Added alphabetical key sort in reports #306
• Breaking change Added constructor and KClass parameters to the ParameterMapper interface to allow inspection of annotations on fields #311
• Fixed snakecase variable throwing unused error with strict() #312
• Fixed sealed type subclass decode failure when single string field #313

• Added withClassLoader option to the ConfigLoaderBuilder. This classloader is used when loading the service registry for decoders.

• Print report even when config fails to parse.

• Added aws2 module for AWS support using the AWS SDK version 2

• Report should print after preprocessors have run.

• Fixed bug in DefaultObfuscator to avoid obfuscating booleans/numbers in yml.

• Optionally make using an unresolved substitution value not an error (#300)
• Fixed unresolved error typo (#301)
• Trim input keys in AwsSecretsManagerPreprocessor
• Better errors when key are missing in AwsSecretsManagerPreprocessor
• Updated default obfuscator to not obfuscate non-strings (#299)
• AWS ParameterStorePathPropertySource should support GetParametersByPathResult's nextToken (#295)

• Added allowEmptyTree on ConfigLoaderBuilder to not error if all property sources return no values.

• Added SecretsPolicy to Reporter to determine which fields should be obfuscated.
• Adedd HashObfuscator to use the first 8 characters of the SHA-256 for obfuscation.

• Improved error messages from AWS Secrets Manager
• Adjusted default obfuscator to obfuscate all fields
• Fixed arg names used in constructor error message

• Requires Kotlin 1.6 or higher
• Requires JDK 11 or higher
• ConfigLoader.Builder has been removed and replaced with ConfigLoaderBuilder which has clearer semantics around defaults, and how to override defaults.
• The env vars property source is no longer registered by default. Env vars are typically used to override specific config values, not as an entire source of values, so this avoids some subtle runtime bugs.
• Using an unresolved substitution value, eg ${foo} where foo doesn't exist, is now an error.
• The ConfigLoader.loadConfig functions that accept a File or Path have been removed to simply the config loader class. Instead, use the equivalent methods on ConfigLoaderBuilder
• ParameterMappers now return Set<String> rather than String to allow each parameter mapper to return more than one alternative name. This is only of relevance if you have written custom parameter mappers.
• Preprocessor now returns errors as types, rather than throwing exceptions. This is only of relevance if you have written custom preprocessors.

• ConfigLoaderBuilder.report has been added to output a report of the property sources, the resolved config values ( obfuscated), and which config values were unused.
• ConfigLoaderBuilder.strict mode reports unused config values at any level. If a property source provides a value that is not used, the config loader will error when strict mode is on.
• Multiple @ConfigAlias annotations are now supported per field
• Better error handling on preprocessors.

• Added support for sealed class objects in Json by defining empty maps #245

• Fixed regression with multiple constructors introduced in 1.4.10

• Moved LocalTimeDecoder to core module

• Fixed regression with ConfigSouce::fromPath #234

• Added ParameterStorePathPreprocessor
• Added ParameterStorePathPropertySource
• add LocalTimeDecoder (#233) - Jan Brezina

• Added order to defaults (Sources, Preprocessors and ParamMappers) (#229) - David Gomes

• Added extension methods for Minutes and Seconds to Kotlin durations.
• data class with multiple constructors can select appropriate constructor to load (#231) - alexis-airwallex

• Added Minutes and Seconds as types and added decoders for both.

• Added support for watchers via the hoplite-watch and hoplite-watch-consul modules.
• Added config builder option to not include the default decoders and processors.

• Re-added support for Java8

• Added AwsSecretsManagerPreprocessor preprocessor.
• Bumped AWS client version to 1.12.36

• Added Consul preprocessor.

• Adds basic command line property source. (#217)

• Arrow moduled upgraded to arrow 0.13.2

• Added overload to support config when the config class is not reified. #213

• Support for yaml aliases #208.

• Kotlin version is now 1.4.30
• Breaking: The PropertySource interface has been changed to accept a PropertySourceContext. This only affects users who have written their own custom PropertySource.
• Added @ConfigAlias to allow a data class field to map to multiple values. #197
• Added strict option to ConfigLoader.Builder to throw an error if a config value is unused. Lenient mode is still the default. #187
• Bumped all module deps to latest versions

• Added support for ISO format in Instant decoder #192
• Added suport for objects in sealed classes #194

• Added {{style}} syntax for lookups across files.

• Fixed value types to allow for underlying types that are not strings. Eg, data class Weight(val value: Int)

• Allows data classes with a single field named value to be treated as inline classes. Eg data class RetailerId(val value: String) can be parsed directly from retailerId: "SAKS" without requiring another level of nesting #164

• Added hoplite-vavr module #185
• Added convenience methods to PropertySource to read from strings, streams and optional paths #186

• Fixed decoding of sets of enums #181

• Added kotlinx-datetime module #166
• Fix parser registry for custom mappings #179