Is it safe to upgrade from 1.6.10 to 1.7.6 from the config?

Bitnami Installers
19 
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  DreamFactory Services Platform(tm) Darwin Installer [Mode: Bitnami v1.3.10]
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  * notice:	OS X installation: Apache user set to "_www"
  * info:	Install user is "ok"
  * info:	Composer pre-installed: /Applications/dreamfactory-1.7.6-0/apps/dreamfactory/htdocs/composer.phar
  * info:	Checking for package manager updates
PHP Warning:  PHP Startup: Unable to load dynamic library '/Applications/dreamfactory-1.7.6-0/php/lib/php/extensions/pgsql.so' - dlopen(/Applications/dreamfactory-1.7.6-0/php/lib/php/extensions/pgsql.so, 9): Library not loaded: /usr/lib/libsasl2.2.dylib
  Referenced from: /System/Library/Frameworks/LDAP.framework/Versions/A/LDAP
  Reason: Incompatible library version: LDAP requires version 3.0.0 or later, but libsasl2.2.dylib provides version 0.0.0 in Unknown on line 0
PHP Warning:  PHP Startup: Unable to load dynamic library '/Applications/dreamfactory-1.7.6-0/php/lib/php/extensions/pdo_pgsql.so' - dlopen(/Applications/dreamfactory-1.7.6-0/php/lib/php/extensions/pdo_pgsql.so, 9): Library not loaded: /usr/lib/libsasl2.2.dylib
  Referenced from: /System/Library/Frameworks/LDAP.framework/Versions/A/LDAP
  Reason: Incompatible library version: LDAP requires version 3.0.0 or later, but libsasl2.2.dylib provides version 0.0.0 in Unknown on line 0
  * info:	External modules updated
  * info:	Checking file system structure and permissions
  * notice:	Error changing ownership of local files. Additional steps required. See note at end of run.
  * info:	Installing dependencies
PHP Warning:  PHP Startup: Unable to load dynamic library '/Applications/dreamfactory-1.7.6-0/php/lib/php/extensions/pgsql.so' - dlopen(/Applications/dreamfactory-1.7.6-0/php/lib/php/extensions/pgsql.so, 9): Library not loaded: /usr/lib/libsasl2.2.dylib
  Referenced from: /System/Library/Frameworks/LDAP.framework/Versions/A/LDAP
  Reason: Incompatible library version: LDAP requires version 3.0.0 or later, but libsasl2.2.dylib provides version 0.0.0 in Unknown on line 0
PHP Warning:  PHP Startup: Unable to load dynamic library '/Applications/dreamfactory-1.7.6-0/php/lib/php/extensions/pdo_pgsql.so' - dlopen(/Applications/dreamfactory-1.7.6-0/php/lib/php/extensions/pdo_pgsql.so, 9): Library not loaded: /usr/lib/libsasl2.2.dylib
  Referenced from: /System/Library/Frameworks/LDAP.framework/Versions/A/LDAP
  Reason: Incompatible library version: LDAP requires version 3.0.0 or later, but libsasl2.2.dylib provides version 0.0.0 in Unknown on line 0

Seems fail again!