system/Database/SQLite3/Connection.php
public function getVersion(): string
	{
		if (isset($this->dataCache['version']))
		{
			return $this->dataCache['version'];
		}

		$version = \SQLite3::version();

		return $this->dataCache['version'] = $version['versionString'];
	}
public function getVersion(): string
	{
		if (isset($this->dataCache['version']))
		{
			return $this->dataCache['version'];
		}

		$version = \SQLite3::version();

		return $this->dataCache['version'] = $version['versionString'];
	}
Returns a string containing the version of the database being used.

@return string