I am not sure about the technologies you mentioned. I never used them, but one way to find out how relevant your skills/knowledge are, is to check job posts around you and internationally. If a company is looking for full time hire with specific skills, it means those skills are needed and hopefully when the skills become obsolete (if they do) the company has a plan for its personal (other than getting rid of them). Through job posts, you will also get a feel of how many companies are looking for people with your skills, & those companies profiles. For example, some tools may relevant to big corporate but not startups or maybe companies in a specific field/industry.
I am not sure about the technologies you mentioned. I never used them, but one way to find out how relevant your skills/knowledge are, is to check job posts around you and internationally. If a company is looking for full time hire with specific skills, it means those skills are needed and hopefully when the skills become obsolete (if they do) the company has a plan for its personal (other than getting rid of them). Through job posts, you will also get a feel of how many companies are looking for people with your skills, & those companies profiles. For example, some tools may relevant to big corporate but not startups or maybe companies in a specific field/industry.
I thinks so !